55819572 has 24 divisors (see below), whose sum is σ = 131124000. Its totient is φ = 18481056.

The previous prime is 55819571. The next prime is 55819607. The reversal of 55819572 is 27591855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55819571) 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, 13822 + ... + 17397.

It is an arithmetic number, because the mean of its divisors is an integer number (5463500).

Almost surely, 2^55819572 is an apocalyptic number.

It is an amenable number.

55819572 is an abundant number, since it is smaller than the sum of its proper divisors (75304428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55819572 is a wasteful number, since it uses less digits than its factorization.

55819572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31375 (or 31373 counting only the distinct ones).

The product of its digits is 126000, while the sum is 42.

The square root of 55819572 is about 7471.2496946629. The cubic root of 55819572 is about 382.1749059696.

The spelling of 55819572 in words is "fifty-five million, eight hundred nineteen thousand, five hundred seventy-two".