55124571 has 4 divisors (see below), whose sum is σ = 73499432. Its totient is φ = 36749712.

The previous prime is 55124569. The next prime is 55124599. The reversal of 55124571 is 17542155.

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

It is not a de Polignac number, because 55124571 - 2¹ = 55124569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55124521) 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, 9187426 + ... + 9187431.

It is an arithmetic number, because the mean of its divisors is an integer number (18374858).

Almost surely, 2^55124571 is an apocalyptic number.

55124571 is a deficient number, since it is larger than the sum of its proper divisors (18374861).

55124571 is a wasteful number, since it uses less digits than its factorization.

55124571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18374860.

The product of its digits is 7000, while the sum is 30.

The square root of 55124571 is about 7424.5923120398. The cubic root of 55124571 is about 380.5821432761.

The spelling of 55124571 in words is "fifty-five million, one hundred twenty-four thousand, five hundred seventy-one".