55124499 has 4 divisors (see below), whose sum is σ = 73499336. Its totient is φ = 36749664.

The previous prime is 55124497. The next prime is 55124507. The reversal of 55124499 is 99442155.

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

It is not a de Polignac number, because 55124499 - 2¹ = 55124497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55124497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9187414 + ... + 9187419.

It is an arithmetic number, because the mean of its divisors is an integer number (18374834).

Almost surely, 2^55124499 is an apocalyptic number.

55124499 is a deficient number, since it is larger than the sum of its proper divisors (18374837).

55124499 is a wasteful number, since it uses less digits than its factorization.

55124499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18374836.

The product of its digits is 64800, while the sum is 39.

The square root of 55124499 is about 7424.5874632871. The cubic root of 55124499 is about 380.5819775791.

It can be divided in two parts, 5512 and 4499, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 55124499 in words is "fifty-five million, one hundred twenty-four thousand, four hundred ninety-nine".