55624337 has 4 divisors (see below), whose sum is σ = 55912740. Its totient is φ = 55335936.

The previous prime is 55624297. The next prime is 55624339. The reversal of 55624337 is 73342655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7862416 + 47761921 = 2804^2 + 6911^2 .

It is a cyclic number.

It is not a de Polignac number, because 55624337 - 2⁸ = 55624081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55624297 and 55624306.

It is not an unprimeable number, because it can be changed into a prime (55624339) 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, 143912 + ... + 144297.

It is an arithmetic number, because the mean of its divisors is an integer number (13978185).

Almost surely, 2^55624337 is an apocalyptic number.

It is an amenable number.

55624337 is a deficient number, since it is larger than the sum of its proper divisors (288403).

55624337 is a wasteful number, since it uses less digits than its factorization.

55624337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288402.

The product of its digits is 75600, while the sum is 35.

The square root of 55624337 is about 7458.1724973347. The cubic root of 55624337 is about 381.7288194411.

The spelling of 55624337 in words is "fifty-five million, six hundred twenty-four thousand, three hundred thirty-seven".