56157406 has 4 divisors (see below), whose sum is σ = 84236112. Its totient is φ = 28078702.

The previous prime is 56157401. The next prime is 56157419. The reversal of 56157406 is 60475165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56157401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14039350 + ... + 14039353.

It is an arithmetic number, because the mean of its divisors is an integer number (21059028).

Almost surely, 2^56157406 is an apocalyptic number.

56157406 is a deficient number, since it is larger than the sum of its proper divisors (28078706).

56157406 is a wasteful number, since it uses less digits than its factorization.

56157406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28078705.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 56157406 is about 7493.8245242333. The cubic root of 56157406 is about 382.9443617524.

The spelling of 56157406 in words is "fifty-six million, one hundred fifty-seven thousand, four hundred six".