55501503 has 4 divisors (see below), whose sum is σ = 74002008. Its totient is φ = 37001000.

The previous prime is 55501499. The next prime is 55501513. The reversal of 55501503 is 30510555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55501503 - 2² = 55501499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250248 + ... + 9250253.

It is an arithmetic number, because the mean of its divisors is an integer number (18500502).

Almost surely, 2^55501503 is an apocalyptic number.

55501503 is a deficient number, since it is larger than the sum of its proper divisors (18500505).

55501503 is a wasteful number, since it uses less digits than its factorization.

55501503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18500504.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55501503 is about 7449.9330869478. The cubic root of 55501503 is about 381.4476245685.

The spelling of 55501503 in words is "fifty-five million, five hundred one thousand, five hundred three".