55576772 has 6 divisors (see below), whose sum is σ = 97259358. Its totient is φ = 27788384.

The previous prime is 55576751. The next prime is 55576783. The reversal of 55576772 is 27767555.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34269316 + 21307456 = 5854^2 + 4616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6947093 + ... + 6947100.

It is an arithmetic number, because the mean of its divisors is an integer number (16209893).

Almost surely, 2^55576772 is an apocalyptic number.

It is an amenable number.

55576772 is a deficient number, since it is larger than the sum of its proper divisors (41682586).

55576772 is a wasteful number, since it uses less digits than its factorization.

55576772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13894197 (or 13894195 counting only the distinct ones).

The product of its digits is 514500, while the sum is 44.

The square root of 55576772 is about 7454.9830315032. The cubic root of 55576772 is about 381.6199815347.

The spelling of 55576772 in words is "fifty-five million, five hundred seventy-six thousand, seven hundred seventy-two".