57216542 has 8 divisors (see below), whose sum is σ = 85864800. Its totient is φ = 28594944.

The previous prime is 57216527. The next prime is 57216553. The reversal of 57216542 is 24561275.

57216542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57216499 and 57216508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (10733100).

Almost surely, 2^57216542 is an apocalyptic number.

57216542 is a deficient number, since it is larger than the sum of its proper divisors (28648258).

57216542 is a wasteful number, since it uses less digits than its factorization.

57216542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13330.

The product of its digits is 16800, while the sum is 32.

The square root of 57216542 is about 7564.1616852101. The cubic root of 57216542 is about 385.3368435629.

The spelling of 57216542 in words is "fifty-seven million, two hundred sixteen thousand, five hundred forty-two".