56400351 has 8 divisors (see below), whose sum is σ = 85943424. Its totient is φ = 32228760.

The previous prime is 56400349. The next prime is 56400361. The reversal of 56400351 is 15300465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56400351 - 2¹ = 56400349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56400361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342845 + ... + 1342886.

It is an arithmetic number, because the mean of its divisors is an integer number (10742928).

Almost surely, 2^56400351 is an apocalyptic number.

56400351 is a deficient number, since it is larger than the sum of its proper divisors (29543073).

56400351 is a wasteful number, since it uses less digits than its factorization.

56400351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685741.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 56400351 is about 7510.0167110333. The cubic root of 56400351 is about 383.4957914214.

The spelling of 56400351 in words is "fifty-six million, four hundred thousand, three hundred fifty-one".