250542120051 has 12 divisors (see below), whose sum is σ = 362012905800. Its totient is φ = 166973280480.

The previous prime is 250542120029. The next prime is 250542120053. The reversal of 250542120051 is 150021245052.

250542120051 is a `hidden beast` number, since 2 + 50 + 542 + 1 + 20 + 0 + 51 = 666.

It is not a de Polignac number, because 250542120051 - 2¹¹ = 250542118003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250542119997 and 250542120024.

It is not an unprimeable number, because it can be changed into a prime (250542120053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4537665 + ... + 4592546.

It is an arithmetic number, because the mean of its divisors is an integer number (30167742150).

Almost surely, 2^250542120051 is an apocalyptic number.

250542120051 is a deficient number, since it is larger than the sum of its proper divisors (111470785749).

250542120051 is a wasteful number, since it uses less digits than its factorization.

250542120051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133266 (or 9133263 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 250542120051 in words is "two hundred fifty billion, five hundred forty-two million, one hundred twenty thousand, fifty-one".