251054836532 has 6 divisors (see below), whose sum is σ = 439345963938. Its totient is φ = 125527418264.

The previous prime is 251054836499. The next prime is 251054836589. The reversal of 251054836532 is 235638450152.

It can be written as a sum of positive squares in only one way, i.e., 190581141136 + 60473695396 = 436556^2 + 245914^2 .

It is a super-2 number, since 2×251054836532² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31381854563 + ... + 31381854570.

It is an arithmetic number, because the mean of its divisors is an integer number (73224327323).

Almost surely, 2^251054836532 is an apocalyptic number.

It is an amenable number.

251054836532 is a deficient number, since it is larger than the sum of its proper divisors (188291127406).

251054836532 is a wasteful number, since it uses less digits than its factorization.

251054836532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62763709137 (or 62763709135 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 251054836532 in words is "two hundred fifty-one billion, fifty-four million, eight hundred thirty-six thousand, five hundred thirty-two".