25316020 has 12 divisors (see below), whose sum is σ = 53163684. Its totient is φ = 10126400.

The previous prime is 25315963. The next prime is 25316021. The reversal of 25316020 is 2061352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4485924 + 20830096 = 2118^2 + 4564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25316021) 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, 632881 + ... + 632920.

It is an arithmetic number, because the mean of its divisors is an integer number (4430307).

Almost surely, 2^25316020 is an apocalyptic number.

25316020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25316020 is an abundant number, since it is smaller than the sum of its proper divisors (27847664).

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

25316020 is a wasteful number, since it uses less digits than its factorization.

25316020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265810 (or 1265808 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 25316020 is about 5031.5027576262. The cubic root of 25316020 is about 293.6286826633.

Adding to 25316020 its reverse (2061352), we get a palindrome (27377372).

The spelling of 25316020 in words is "twenty-five million, three hundred sixteen thousand, twenty".