56103591 has 8 divisors (see below), whose sum is σ = 76031344. Its totient is φ = 36789120.

The previous prime is 56103569. The next prime is 56103613. The reversal of 56103591 is 19530165.

It is an interprime number because it is at equal distance from previous prime (56103569) and next prime (56103613).

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

It is not a de Polignac number, because 56103591 - 2⁹ = 56103079 is a prime.

It is a super-2 number, since 2×56103591² = 6295225846190562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56103511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153106 + ... + 153471.

It is an arithmetic number, because the mean of its divisors is an integer number (9503918).

Almost surely, 2^56103591 is an apocalyptic number.

56103591 is a deficient number, since it is larger than the sum of its proper divisors (19927753).

56103591 is a wasteful number, since it uses less digits than its factorization.

56103591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306641.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 56103591 is about 7490.2330404334. The cubic root of 56103591 is about 382.8219989235.

The spelling of 56103591 in words is "fifty-six million, one hundred three thousand, five hundred ninety-one".