55855837 has 4 divisors (see below), whose sum is σ = 55932160. Its totient is φ = 55779516.

The previous prime is 55855759. The next prime is 55855853. The reversal of 55855837 is 73855855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55855837 - 2¹⁵ = 55823069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55855867) 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, 37053 + ... + 38530.

It is an arithmetic number, because the mean of its divisors is an integer number (13983040).

Almost surely, 2^55855837 is an apocalyptic number.

It is an amenable number.

55855837 is a deficient number, since it is larger than the sum of its proper divisors (76323).

55855837 is an equidigital number, since it uses as much as digits as its factorization.

55855837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76322.

The product of its digits is 840000, while the sum is 46.

The square root of 55855837 is about 7473.6762707519. The cubic root of 55855837 is about 382.2576521708.

The spelling of 55855837 in words is "fifty-five million, eight hundred fifty-five thousand, eight hundred thirty-seven".