25362090820 has 48 divisors (see below), whose sum is σ = 58209915456. Its totient is φ = 9205488000.

The previous prime is 25362090799. The next prime is 25362090829. The reversal of 25362090820 is 2809026352.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25362090820.

It is not an unprimeable number, because it can be changed into a prime (25362090829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12475 + ... + 225565.

It is an arithmetic number, because the mean of its divisors is an integer number (1212706572).

Almost surely, 2^25362090820 is an apocalyptic number.

25362090820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25362090820 is an abundant number, since it is smaller than the sum of its proper divisors (32847824636).

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

25362090820 is a wasteful number, since it uses less digits than its factorization.

25362090820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213652 (or 213650 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 25362090820 in words is "twenty-five billion, three hundred sixty-two million, ninety thousand, eight hundred twenty".