253357553 has 2 divisors, whose sum is σ = 253357554. Its totient is φ = 253357552.

The previous prime is 253357549. The next prime is 253357561. The reversal of 253357553 is 355753352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129436129 + 123921424 = 11377^2 + 11132^2 .

It is a cyclic number.

It is not a de Polignac number, because 253357553 - 2² = 253357549 is a prime.

It is equal to p_13852892 and since 253357553 and 13852892 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (253357453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126678776 + 126678777.

It is an arithmetic number, because the mean of its divisors is an integer number (126678777).

Almost surely, 2^253357553 is an apocalyptic number.

It is an amenable number.

253357553 is a deficient number, since it is larger than the sum of its proper divisors (1).

253357553 is an equidigital number, since it uses as much as digits as its factorization.

253357553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236250, while the sum is 38.

The square root of 253357553 is about 15917.2093345536. The cubic root of 253357553 is about 632.7681609615.

The spelling of 253357553 in words is "two hundred fifty-three million, three hundred fifty-seven thousand, five hundred fifty-three".