56647842 has 32 divisors (see below), whose sum is σ = 120932352. Its totient is φ = 17627904.

The previous prime is 56647841. The next prime is 56647861. The reversal of 56647842 is 24874665.

It is a junction number, because it is equal to n+sod(n) for n = 56647794 and 56647803.

It is not an unprimeable number, because it can be changed into a prime (56647841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10768 + ... + 15140.

It is an arithmetic number, because the mean of its divisors is an integer number (3779136).

Almost surely, 2^56647842 is an apocalyptic number.

56647842 is an abundant number, since it is smaller than the sum of its proper divisors (64284510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56647842 is a wasteful number, since it uses less digits than its factorization.

56647842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522.

The product of its digits is 322560, while the sum is 42.

The square root of 56647842 is about 7526.4760678554. The cubic root of 56647842 is about 384.0559136246.

The spelling of 56647842 in words is "fifty-six million, six hundred forty-seven thousand, eight hundred forty-two".