55624468 has 12 divisors (see below), whose sum is σ = 99973972. Its totient is φ = 27060480.

The previous prime is 55624463. The next prime is 55624469. The reversal of 55624468 is 86442655.

It can be written as a sum of positive squares in 2 ways, for example, as 49533444 + 6091024 = 7038^2 + 2468^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55624468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55624463) 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, 187773 + ... + 188068.

Almost surely, 2^55624468 is an apocalyptic number.

It is an amenable number.

55624468 is a deficient number, since it is larger than the sum of its proper divisors (44349504).

55624468 is a wasteful number, since it uses less digits than its factorization.

55624468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375882 (or 375880 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 55624468 is about 7458.1812796418. The cubic root of 55624468 is about 381.7291191087.

The spelling of 55624468 in words is "fifty-five million, six hundred twenty-four thousand, four hundred sixty-eight".