56542505 has 8 divisors (see below), whose sum is σ = 68668992. Its totient is φ = 44688688.

The previous prime is 56542477. The next prime is 56542513. The reversal of 56542505 is 50524565.

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

It is a cyclic number.

It is not a de Polignac number, because 56542505 - 2⁸ = 56542249 is a prime.

It is a Duffinian 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, 67709 + ... + 68538.

It is an arithmetic number, because the mean of its divisors is an integer number (8583624).

Almost surely, 2^56542505 is an apocalyptic number.

It is an amenable number.

56542505 is a deficient number, since it is larger than the sum of its proper divisors (12126487).

56542505 is a wasteful number, since it uses less digits than its factorization.

56542505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136335.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 56542505 is about 7519.4750481666. The cubic root of 56542505 is about 383.8177144988.

The spelling of 56542505 in words is "fifty-six million, five hundred forty-two thousand, five hundred five".