55630023437 has 4 divisors (see below), whose sum is σ = 55631475360. Its totient is φ = 55628571516.

The previous prime is 55630023413. The next prime is 55630023467. The reversal of 55630023437 is 73432003655.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73432003655 = 5 ⋅14686400731.

It is a cyclic number.

It is not a de Polignac number, because 55630023437 - 2¹⁸ = 55629761293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55630023437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55630023467) 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, 666887 + ... + 745652.

It is an arithmetic number, because the mean of its divisors is an integer number (13907868840).

Almost surely, 2^55630023437 is an apocalyptic number.

It is an amenable number.

55630023437 is a deficient number, since it is larger than the sum of its proper divisors (1451923).

55630023437 is a wasteful number, since it uses less digits than its factorization.

55630023437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451922.

The product of its (nonzero) digits is 226800, while the sum is 38.

The spelling of 55630023437 in words is "fifty-five billion, six hundred thirty million, twenty-three thousand, four hundred thirty-seven".