251263131352 has 16 divisors (see below), whose sum is σ = 471126448440. Its totient is φ = 125629411776.

The previous prime is 251263131293. The next prime is 251263131389. The reversal of 251263131352 is 253131362152.

It is a super-2 number, since 2×251263131352² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296463 + ... + 768385.

Almost surely, 2^251263131352 is an apocalyptic number.

It is an amenable number.

251263131352 is a deficient number, since it is larger than the sum of its proper divisors (219863317088).

251263131352 is a wasteful number, since it uses less digits than its factorization.

251263131352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538482 (or 538478 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The spelling of 251263131352 in words is "two hundred fifty-one billion, two hundred sixty-three million, one hundred thirty-one thousand, three hundred fifty-two".