56542911 has 4 divisors (see below), whose sum is σ = 75390552. Its totient is φ = 37695272.

The previous prime is 56542903. The next prime is 56542921. The reversal of 56542911 is 11924565.

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

It is a cyclic number.

It is not a de Polignac number, because 56542911 - 2³ = 56542903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56542921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9423816 + ... + 9423821.

It is an arithmetic number, because the mean of its divisors is an integer number (18847638).

Almost surely, 2^56542911 is an apocalyptic number.

56542911 is a deficient number, since it is larger than the sum of its proper divisors (18847641).

56542911 is a wasteful number, since it uses less digits than its factorization.

56542911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18847640.

The product of its digits is 10800, while the sum is 33.

The square root of 56542911 is about 7519.5020446835. The cubic root of 56542911 is about 383.8186331565.

The spelling of 56542911 in words is "fifty-six million, five hundred forty-two thousand, nine hundred eleven".