31252600540 has 48 divisors (see below), whose sum is σ = 75074614272. Its totient is φ = 10705409856.

The previous prime is 31252600529. The next prime is 31252600559. The reversal of 31252600540 is 4500625213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 31252600499 and 31252600508.

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, 53227 + ... + 255613.

It is an arithmetic number, because the mean of its divisors is an integer number (1564054464).

Almost surely, 2^31252600540 is an apocalyptic number.

It is an amenable number.

31252600540 is an abundant number, since it is smaller than the sum of its proper divisors (43822013732).

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

31252600540 is a wasteful number, since it uses less digits than its factorization.

31252600540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203506 (or 203504 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 31252600540 in words is "thirty-one billion, two hundred fifty-two million, six hundred thousand, five hundred forty".