25032311540 has 48 divisors (see below), whose sum is σ = 53814794880. Its totient is φ = 9775624320.

The previous prime is 25032311467. The next prime is 25032311561. The reversal of 25032311540 is 4511323052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2395046 + ... + 2405474.

It is an arithmetic number, because the mean of its divisors is an integer number (1121141560).

Almost surely, 2^25032311540 is an apocalyptic number.

25032311540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25032311540 is an abundant number, since it is smaller than the sum of its proper divisors (28782483340).

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

25032311540 is a wasteful number, since it uses less digits than its factorization.

25032311540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13272 (or 13270 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 25032311540 its reverse (4511323052), we get a palindrome (29543634592).

The spelling of 25032311540 in words is "twenty-five billion, thirty-two million, three hundred eleven thousand, five hundred forty".