56421374 has 16 divisors (see below), whose sum is σ = 91496400. Its totient is φ = 26002944.

The previous prime is 56421373. The next prime is 56421377. The reversal of 56421374 is 47312465.

It is a self number, because there is not a number n which added to its sum of digits gives 56421374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56421373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18659 + ... + 21470.

It is an arithmetic number, because the mean of its divisors is an integer number (5718525).

Almost surely, 2^56421374 is an apocalyptic number.

56421374 is a deficient number, since it is larger than the sum of its proper divisors (35075026).

56421374 is a wasteful number, since it uses less digits than its factorization.

56421374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40187.

The product of its digits is 20160, while the sum is 32.

The square root of 56421374 is about 7511.4162446239. The cubic root of 56421374 is about 383.5434343312.

The spelling of 56421374 in words is "fifty-six million, four hundred twenty-one thousand, three hundred seventy-four".