251241240332 has 6 divisors (see below), whose sum is σ = 439672170588. Its totient is φ = 125620620164.

The previous prime is 251241240311. The next prime is 251241240343. The reversal of 251241240332 is 233042142152.

It is a junction number, because it is equal to n+sod(n) for n = 251241240295 and 251241240304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31405155038 + ... + 31405155045.

It is an arithmetic number, because the mean of its divisors is an integer number (73278695098).

Almost surely, 2^251241240332 is an apocalyptic number.

It is an amenable number.

251241240332 is a deficient number, since it is larger than the sum of its proper divisors (188430930256).

251241240332 is a wasteful number, since it uses less digits than its factorization.

251241240332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62810310087 (or 62810310085 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 251241240332 its reverse (233042142152), we get a palindrome (484283382484).

The spelling of 251241240332 in words is "two hundred fifty-one billion, two hundred forty-one million, two hundred forty thousand, three hundred thirty-two".