55501624 has 16 divisors (see below), whose sum is σ = 104203800. Its totient is φ = 27713952.

The previous prime is 55501597. The next prime is 55501627. The reversal of 55501624 is 42610555.

It is a junction number, because it is equal to n+sod(n) for n = 55501592 and 55501601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501627) 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, 2422 + ... + 10810.

Almost surely, 2^55501624 is an apocalyptic number.

It is an amenable number.

55501624 is a deficient number, since it is larger than the sum of its proper divisors (48702176).

55501624 is a wasteful number, since it uses less digits than its factorization.

55501624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9222 (or 9218 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55501624 is about 7449.9412078217. The cubic root of 55501624 is about 381.4479017690.

The spelling of 55501624 in words is "fifty-five million, five hundred one thousand, six hundred twenty-four".