56451406 has 16 divisors (see below), whose sum is σ = 92752128. Its totient is φ = 25555000.

The previous prime is 56451401. The next prime is 56451433. The reversal of 56451406 is 60415465.

It is a super-2 number, since 2×56451406² = 6373522478753672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56451401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411 + ... + 10633.

It is an arithmetic number, because the mean of its divisors is an integer number (5797008).

Almost surely, 2^56451406 is an apocalyptic number.

56451406 is a deficient number, since it is larger than the sum of its proper divisors (36300722).

56451406 is a wasteful number, since it uses less digits than its factorization.

56451406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10487.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 56451406 is about 7513.4150690615. The cubic root of 56451406 is about 383.6114731641.

The spelling of 56451406 in words is "fifty-six million, four hundred fifty-one thousand, four hundred six".