401332253 has 4 divisors (see below), whose sum is σ = 458665440. Its totient is φ = 343999068.

The previous prime is 401332249. The next prime is 401332331. The reversal of 401332253 is 352233104.

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 not a de Polignac number, because 401332253 - 2² = 401332249 is a prime.

It is a super-2 number, since 2×401332253² = 322135154596112018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401332213) 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, 28666583 + ... + 28666596.

It is an arithmetic number, because the mean of its divisors is an integer number (114666360).

Almost surely, 2^401332253 is an apocalyptic number.

It is an amenable number.

401332253 is a deficient number, since it is larger than the sum of its proper divisors (57333187).

401332253 is an equidigital number, since it uses as much as digits as its factorization.

401332253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57333186.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 401332253 is about 20033.2786383058. The cubic root of 401332253 is about 737.6234035769.

Adding to 401332253 its reverse (352233104), we get a palindrome (753565357).

The spelling of 401332253 in words is "four hundred one million, three hundred thirty-two thousand, two hundred fifty-three".