56511895 has 8 divisors (see below), whose sum is σ = 73979280. Its totient is φ = 41099520.

The previous prime is 56511881. The next prime is 56511929. The reversal of 56511895 is 59811565.

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

It is not a de Polignac number, because 56511895 - 2⁵ = 56511863 is a prime.

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, 513690 + ... + 513799.

It is an arithmetic number, because the mean of its divisors is an integer number (9247410).

Almost surely, 2^56511895 is an apocalyptic number.

56511895 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56511895 is a deficient number, since it is larger than the sum of its proper divisors (17467385).

56511895 is a wasteful number, since it uses less digits than its factorization.

56511895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027505.

The product of its digits is 54000, while the sum is 40.

The square root of 56511895 is about 7517.4393911757. The cubic root of 56511895 is about 383.7484404723.

The spelling of 56511895 in words is "fifty-six million, five hundred eleven thousand, eight hundred ninety-five".