55613403 has 12 divisors (see below), whose sum is σ = 81299400. Its totient is φ = 36628416.

The previous prime is 55613381. The next prime is 55613407. The reversal of 55613403 is 30431655.

55613403 is a `hidden beast` number, since 5 + 5 + 613 + 40 + 3 = 666.

It is not a de Polignac number, because 55613403 - 2⁶ = 55613339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55613407) 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, 36478 + ... + 37971.

It is an arithmetic number, because the mean of its divisors is an integer number (6774950).

Almost surely, 2^55613403 is an apocalyptic number.

55613403 is a deficient number, since it is larger than the sum of its proper divisors (25685997).

55613403 is a wasteful number, since it uses less digits than its factorization.

55613403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74538 (or 74535 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55613403 is about 7457.4394399150. The cubic root of 55613403 is about 381.7038058311.

The spelling of 55613403 in words is "fifty-five million, six hundred thirteen thousand, four hundred three".