251552053244051 has 16 divisors (see below), whose sum is σ = 292942319155200. Its totient is φ = 211563762180768.

The previous prime is 251552053244029. The next prime is 251552053244113. The reversal of 251552053244051 is 150442350255152.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251552053244051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251552053243993 and 251552053244011.

It is not an unprimeable number, because it can be changed into a prime (251552053444051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1600349291 + ... + 1600506468.

It is an arithmetic number, because the mean of its divisors is an integer number (18308894947200).

Almost surely, 2^{251552053244051} is an apocalyptic number.

251552053244051 is a deficient number, since it is larger than the sum of its proper divisors (41390265911149).

251552053244051 is a wasteful number, since it uses less digits than its factorization.

251552053244051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200855978.

The product of its (nonzero) digits is 1200000, while the sum is 44.

The spelling of 251552053244051 in words is "two hundred fifty-one trillion, five hundred fifty-two billion, fifty-three million, two hundred forty-four thousand, fifty-one".