25360020 has 96 divisors (see below), whose sum is σ = 90182400. Its totient is φ = 5795712.

The previous prime is 25360019. The next prime is 25360021. The reversal of 25360020 is 2006352.

It is an interprime number because it is at equal distance from previous prime (25360019) and next prime (25360021).

It is a super-2 number, since 2×25360020² = 1286261228800800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25359975 and 25360002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25360021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 426 + ... + 7134.

It is an arithmetic number, because the mean of its divisors is an integer number (939400).

Almost surely, 2^25360020 is an apocalyptic number.

25360020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25360020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45091200).

25360020 is an abundant number, since it is smaller than the sum of its proper divisors (64822380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25360020 is a wasteful number, since it uses less digits than its factorization.

25360020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734 (or 6726 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25360020 is about 5035.8733105590. The cubic root of 25360020 is about 293.7986960164.

Adding to 25360020 its reverse (2006352), we get a palindrome (27366372).

The spelling of 25360020 in words is "twenty-five million, three hundred sixty thousand, twenty".