55872437 has 4 divisors (see below), whose sum is σ = 57171840. Its totient is φ = 54573036.

The previous prime is 55872431. The next prime is 55872449. The reversal of 55872437 is 73427855.

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 55872437 - 2⁸ = 55872181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55872394 and 55872403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55872431) 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, 649637 + ... + 649722.

It is an arithmetic number, because the mean of its divisors is an integer number (14292960).

Almost surely, 2^55872437 is an apocalyptic number.

It is an amenable number.

55872437 is a deficient number, since it is larger than the sum of its proper divisors (1299403).

55872437 is a wasteful number, since it uses less digits than its factorization.

55872437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299402.

The product of its digits is 235200, while the sum is 41.

The square root of 55872437 is about 7474.7867528111. The cubic root of 55872437 is about 382.2955166021.

The spelling of 55872437 in words is "fifty-five million, eight hundred seventy-two thousand, four hundred thirty-seven".