55380037 has 4 divisors (see below), whose sum is σ = 55560736. Its totient is φ = 55199340.

The previous prime is 55380019. The next prime is 55380047. The reversal of 55380037 is 73008355.

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 55380037 - 2²³ = 46991429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55379990 and 55380008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55380047) 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, 89889 + ... + 90502.

It is an arithmetic number, because the mean of its divisors is an integer number (13890184).

Almost surely, 2^55380037 is an apocalyptic number.

It is an amenable number.

55380037 is a deficient number, since it is larger than the sum of its proper divisors (180699).

55380037 is a wasteful number, since it uses less digits than its factorization.

55380037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180698.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55380037 is about 7441.7764680216. The cubic root of 55380037 is about 381.1691530801.

The spelling of 55380037 in words is "fifty-five million, three hundred eighty thousand, thirty-seven".