55628437 has 8 divisors (see below), whose sum is σ = 58968000. Its totient is φ = 52296384.

The previous prime is 55628423. The next prime is 55628449. The reversal of 55628437 is 73482655.

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

It is a cyclic number.

It is not a de Polignac number, because 55628437 - 2¹⁹ = 55104149 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 55628437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55628407) 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, 22614 + ... + 24952.

It is an arithmetic number, because the mean of its divisors is an integer number (7371000).

Almost surely, 2^55628437 is an apocalyptic number.

It is an amenable number.

55628437 is a deficient number, since it is larger than the sum of its proper divisors (3339563).

55628437 is a wasteful number, since it uses less digits than its factorization.

55628437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its digits is 201600, while the sum is 40.

The square root of 55628437 is about 7458.4473585325. The cubic root of 55628437 is about 381.7381981279.

It can be divided in two parts, 55628 and 437, that added together give a palindrome (56065).

The spelling of 55628437 in words is "fifty-five million, six hundred twenty-eight thousand, four hundred thirty-seven".