55612503 has 24 divisors (see below), whose sum is σ = 81664128. Its totient is φ = 36465552.

The previous prime is 55612499. The next prime is 55612507. The reversal of 55612503 is 30521655.

It is an interprime number because it is at equal distance from previous prime (55612499) and next prime (55612507).

It is not a de Polignac number, because 55612503 - 2² = 55612499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55612507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244876 + ... + 245102.

It is an arithmetic number, because the mean of its divisors is an integer number (3402672).

Almost surely, 2^55612503 is an apocalyptic number.

55612503 is a deficient number, since it is larger than the sum of its proper divisors (26051625).

55612503 is a wasteful number, since it uses less digits than its factorization.

55612503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 55612503 is about 7457.3790972432. The cubic root of 55612503 is about 381.7017467634.

The spelling of 55612503 in words is "fifty-five million, six hundred twelve thousand, five hundred three".