55921595 has 4 divisors (see below), whose sum is σ = 67105920. Its totient is φ = 44737272.

The previous prime is 55921573. The next prime is 55921597. The reversal of 55921595 is 59512955.

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 55921595 - 2²⁴ = 39144379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55921597) 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, 5592155 + ... + 5592164.

It is an arithmetic number, because the mean of its divisors is an integer number (16776480).

Almost surely, 2^55921595 is an apocalyptic number.

55921595 is a deficient number, since it is larger than the sum of its proper divisors (11184325).

55921595 is a wasteful number, since it uses less digits than its factorization.

55921595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11184324.

The product of its digits is 101250, while the sum is 41.

The square root of 55921595 is about 7478.0742841991. The cubic root of 55921595 is about 382.4076015300.

The spelling of 55921595 in words is "fifty-five million, nine hundred twenty-one thousand, five hundred ninety-five".