253265011051 has 4 divisors (see below), whose sum is σ = 272746934992. Its totient is φ = 233783087112.

The previous prime is 253265011039. The next prime is 253265011057. The reversal of 253265011051 is 150110562352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253265011051 - 2⁵ = 253265011019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253265011057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9740961951 + ... + 9740961976.

It is an arithmetic number, because the mean of its divisors is an integer number (68186733748).

Almost surely, 2^253265011051 is an apocalyptic number.

253265011051 is a deficient number, since it is larger than the sum of its proper divisors (19481923941).

253265011051 is a wasteful number, since it uses less digits than its factorization.

253265011051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19481923940.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 253265011051 in words is "two hundred fifty-three billion, two hundred sixty-five million, eleven thousand, fifty-one".