25112020 has 12 divisors (see below), whose sum is σ = 52735284. Its totient is φ = 10044800.

The previous prime is 25111987. The next prime is 25112027. The reversal of 25112020 is 2021152.

It can be written as a sum of positive squares in 2 ways, for example, as 10150596 + 14961424 = 3186^2 + 3868^2 .

It is a super-2 number, since 2×25112020² = 1261227096960800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25112027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627781 + ... + 627820.

It is an arithmetic number, because the mean of its divisors is an integer number (4394607).

Almost surely, 2^25112020 is an apocalyptic number.

25112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25112020 is an abundant number, since it is smaller than the sum of its proper divisors (27623264).

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

25112020 is a wasteful number, since it uses less digits than its factorization.

25112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255610 (or 1255608 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 25112020 is about 5011.1894795547. The cubic root of 25112020 is about 292.8378544278.

Adding to 25112020 its reverse (2021152), we get a palindrome (27133172).

The spelling of 25112020 in words is "twenty-five million, one hundred twelve thousand, twenty".