55747232 has 12 divisors (see below), whose sum is σ = 109752426. Its totient is φ = 27873600.

The previous prime is 55747231. The next prime is 55747259. The reversal of 55747232 is 23274755.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 13808656 = 6476^2 + 3716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55747192 and 55747201.

It is not an unprimeable number, because it can be changed into a prime (55747231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871019 + ... + 871082.

Almost surely, 2^55747232 is an apocalyptic number.

It is an amenable number.

55747232 is a deficient number, since it is larger than the sum of its proper divisors (54005194).

55747232 is a wasteful number, since it uses less digits than its factorization.

55747232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742111 (or 1742103 counting only the distinct ones).

The product of its digits is 58800, while the sum is 35.

The square root of 55747232 is about 7466.4069002432. The cubic root of 55747232 is about 382.0097399817.

The spelling of 55747232 in words is "fifty-five million, seven hundred forty-seven thousand, two hundred thirty-two".