56438542 has 16 divisors (see below), whose sum is σ = 88378272. Its totient is φ = 27004320.

The previous prime is 56438537. The next prime is 56438561. The reversal of 56438542 is 24583465.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 10765.

It is an arithmetic number, because the mean of its divisors is an integer number (5523642).

Almost surely, 2^56438542 is an apocalyptic number.

56438542 is a deficient number, since it is larger than the sum of its proper divisors (31939730).

56438542 is a wasteful number, since it uses less digits than its factorization.

56438542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12603.

The product of its digits is 115200, while the sum is 37.

The square root of 56438542 is about 7512.5589515158. The cubic root of 56438542 is about 383.5823321546.

The spelling of 56438542 in words is "fifty-six million, four hundred thirty-eight thousand, five hundred forty-two".