251424530253 has 64 divisors (see below), whose sum is σ = 404103732480. Its totient is φ = 153579089664.

The previous prime is 251424530249. The next prime is 251424530293. The reversal of 251424530253 is 352035424152.

251424530253 is a `hidden beast` number, since 2 + 51 + 4 + 24 + 530 + 2 + 53 = 666.

It is not a de Polignac number, because 251424530253 - 2² = 251424530249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251424530293) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75660250 + ... + 75663572.

It is an arithmetic number, because the mean of its divisors is an integer number (6314120820).

Almost surely, 2^251424530253 is an apocalyptic number.

It is an amenable number.

251424530253 is a deficient number, since it is larger than the sum of its proper divisors (152679202227).

251424530253 is a wasteful number, since it uses less digits than its factorization.

251424530253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875 (or 4869 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 251424530253 in words is "two hundred fifty-one billion, four hundred twenty-four million, five hundred thirty thousand, two hundred fifty-three".