31252025025 has 216 divisors, whose sum is σ = 63167493480. Its totient is φ = 14750760960.

The previous prime is 31252025023. The next prime is 31252025039. The reversal of 31252025025 is 52052025213.

It can be written as a sum of positive squares in 36 ways, for example, as 28115240976 + 3136784049 = 167676^2 + 56007^2 .

It is not a de Polignac number, because 31252025025 - 2¹ = 31252025023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31252025025.

It is not an unprimeable number, because it can be changed into a prime (31252025023) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 136471611 + ... + 136471839.

Almost surely, 2^31252025025 is an apocalyptic number.

It is an amenable number.

31252025025 is an abundant number, since it is smaller than the sum of its proper divisors (31915468455).

31252025025 is a wasteful number, since it uses less digits than its factorization.

31252025025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 31252025025 in words is "thirty-one billion, two hundred fifty-two million, twenty-five thousand, twenty-five".