400253051 has 4 divisors (see below), whose sum is σ = 436639704. Its totient is φ = 363866400.

The previous prime is 400253047. The next prime is 400253053. The reversal of 400253051 is 150352004.

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 400253051 - 2² = 400253047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400253053) 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, 18193310 + ... + 18193331.

It is an arithmetic number, because the mean of its divisors is an integer number (109159926).

Almost surely, 2^400253051 is an apocalyptic number.

400253051 is a deficient number, since it is larger than the sum of its proper divisors (36386653).

400253051 is a wasteful number, since it uses less digits than its factorization.

400253051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36386652.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 400253051 is about 20006.3252747725. The cubic root of 400253051 is about 736.9616416173.

The spelling of 400253051 in words is "four hundred million, two hundred fifty-three thousand, fifty-one".