251042240152 has 16 divisors (see below), whose sum is σ = 513495491400. Its totient is φ = 114110109120.

The previous prime is 251042240123. The next prime is 251042240167.

It is a happy number.

251042240152 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 251042240152.

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, 1426376277 + ... + 1426376452.

Almost surely, 2^251042240152 is an apocalyptic number.

251042240152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

251042240152 is an abundant number, since it is smaller than the sum of its proper divisors (262453251248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251042240152 is a wasteful number, since it uses less digits than its factorization.

251042240152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852752746 (or 2852752742 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

It can be divided in two parts, 251042 and 240152, that added together give a palindrome (491194).

The spelling of 251042240152 in words is "two hundred fifty-one billion, forty-two million, two hundred forty thousand, one hundred fifty-two".