55775732 has 6 divisors (see below), whose sum is σ = 97607538. Its totient is φ = 27887864.

The previous prime is 55775717. The next prime is 55775737. The reversal of 55775732 is 23757755.

55775732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 55294096 + 481636 = 7436^2 + 694^2 .

It is a super-2 number, since 2×55775732² = 6221864560271648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55775732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55775737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971963 + ... + 6971970.

It is an arithmetic number, because the mean of its divisors is an integer number (16267923).

Almost surely, 2^55775732 is an apocalyptic number.

It is an amenable number.

55775732 is a deficient number, since it is larger than the sum of its proper divisors (41831806).

55775732 is a wasteful number, since it uses less digits than its factorization.

55775732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13943937 (or 13943935 counting only the distinct ones).

The product of its digits is 257250, while the sum is 41.

The square root of 55775732 is about 7468.3152049174. The cubic root of 55775732 is about 382.0748279535.

The spelling of 55775732 in words is "fifty-five million, seven hundred seventy-five thousand, seven hundred thirty-two".