401164553 has 4 divisors (see below), whose sum is σ = 401228928. Its totient is φ = 401100180.

The previous prime is 401164531. The next prime is 401164571. The reversal of 401164553 is 355461104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401164553 - 2²⁴ = 384387337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401104553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21701 + ... + 35682.

It is an arithmetic number, because the mean of its divisors is an integer number (100307232).

Almost surely, 2^401164553 is an apocalyptic number.

It is an amenable number.

401164553 is a deficient number, since it is larger than the sum of its proper divisors (64375).

401164553 is an equidigital number, since it uses as much as digits as its factorization.

401164553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64374.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 401164553 is about 20029.0926654205. The cubic root of 401164553 is about 737.5206485840.

The spelling of 401164553 in words is "four hundred one million, one hundred sixty-four thousand, five hundred fifty-three".