25325121542120 has 64 divisors (see below), whose sum is σ = 58124730114000. Its totient is φ = 9928010926080.

The previous prime is 25325121542069. The next prime is 25325121542129. The reversal of 25325121542120 is 2124512152352.

It can be written as a sum of positive squares in 8 ways, for example, as 2226774248644 + 23098347293476 = 1492238^2 + 4806074^2 .

It is a super-2 number, since 2×25325121542120² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25325121542129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18059045 + ... + 19410804.

Almost surely, 2^{25325121542120} is an apocalyptic number.

25325121542120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25325121542120 is an abundant number, since it is smaller than the sum of its proper divisors (32799608571880).

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

25325121542120 is a wasteful number, since it uses less digits than its factorization.

25325121542120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37470198 (or 37470194 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 25325121542120 its reverse (2124512152352), we get a palindrome (27449633694472).

The spelling of 25325121542120 in words is "twenty-five trillion, three hundred twenty-five billion, one hundred twenty-one million, five hundred forty-two thousand, one hundred twenty".