56397401 has 4 divisors (see below), whose sum is σ = 58216704. Its totient is φ = 54578100.

The previous prime is 56397379. The next prime is 56397409. The reversal of 56397401 is 10479365.

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 56397401 - 2¹⁰ = 56396377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56397409) 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, 909605 + ... + 909666.

It is an arithmetic number, because the mean of its divisors is an integer number (14554176).

Almost surely, 2^56397401 is an apocalyptic number.

It is an amenable number.

56397401 is a deficient number, since it is larger than the sum of its proper divisors (1819303).

56397401 is a wasteful number, since it uses less digits than its factorization.

56397401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819302.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 56397401 is about 7509.8203041085. The cubic root of 56397401 is about 383.4891051018.

It can be divided in two parts, 56 and 397401, that multiplied together give a triangular number (22254456 = T₆₆₇₁).

The spelling of 56397401 in words is "fifty-six million, three hundred ninety-seven thousand, four hundred one".