253264520551 has 8 divisors (see below), whose sum is σ = 289834735104. Its totient is φ = 216791698200.

The previous prime is 253264520549. The next prime is 253264520573. The reversal of 253264520551 is 155025462352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253264520551 - 2¹ = 253264520549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253264520651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24342475 + ... + 24352876.

It is an arithmetic number, because the mean of its divisors is an integer number (36229341888).

Almost surely, 2^253264520551 is an apocalyptic number.

253264520551 is a deficient number, since it is larger than the sum of its proper divisors (36570214553).

253264520551 is an equidigital number, since it uses as much as digits as its factorization.

253264520551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48696101.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 253264520551 in words is "two hundred fifty-three billion, two hundred sixty-four million, five hundred twenty thousand, five hundred fifty-one".