55573756 has 12 divisors (see below), whose sum is σ = 111147568. Its totient is φ = 23817312.

The previous prime is 55573751. The next prime is 55573757. The reversal of 55573756 is 65737555.

55573756 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55573751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992361 + ... + 992416.

Almost surely, 2^55573756 is an apocalyptic number.

It is an amenable number.

55573756 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55573756 is a wasteful number, since it uses less digits than its factorization.

55573756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984788 (or 1984786 counting only the distinct ones).

The product of its digits is 551250, while the sum is 43.

The square root of 55573756 is about 7454.7807479496. The cubic root of 55573756 is about 381.6130782509.

The spelling of 55573756 in words is "fifty-five million, five hundred seventy-three thousand, seven hundred fifty-six".