253204440523 has 8 divisors (see below), whose sum is σ = 259170151856. Its totient is φ = 247242240000.

The previous prime is 253204440479. The next prime is 253204440551. The reversal of 253204440523 is 325044402352.

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

It is a cyclic number.

It is not a de Polignac number, because 253204440523 - 2⁹ = 253204440011 is a prime.

It is a super-2 number, since 2×253204440523² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253204440553) 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, 731478 + ... + 1020523.

It is an arithmetic number, because the mean of its divisors is an integer number (32396268982).

Almost surely, 2^253204440523 is an apocalyptic number.

253204440523 is a deficient number, since it is larger than the sum of its proper divisors (5965711333).

253204440523 is a wasteful number, since it uses less digits than its factorization.

253204440523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755405.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 253204440523 its reverse (325044402352), we get a palindrome (578248842875).

The spelling of 253204440523 in words is "two hundred fifty-three billion, two hundred four million, four hundred forty thousand, five hundred twenty-three".