55503747 has 12 divisors (see below), whose sum is σ = 86339344. Its totient is φ = 34156080.

The previous prime is 55503703. The next prime is 55503751. The reversal of 55503747 is 74730555.

It is not a de Polignac number, because 55503747 - 2⁶ = 55503683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55503787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237079 + ... + 237312.

Almost surely, 2^55503747 is an apocalyptic number.

55503747 is a deficient number, since it is larger than the sum of its proper divisors (30835597).

55503747 is a wasteful number, since it uses less digits than its factorization.

55503747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474410 (or 474407 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 55503747 is about 7450.0836908051. The cubic root of 55503747 is about 381.4527653118.

The spelling of 55503747 in words is "fifty-five million, five hundred three thousand, seven hundred forty-seven".