55152579 has 4 divisors (see below), whose sum is σ = 73536776. Its totient is φ = 36768384.

The previous prime is 55152571. The next prime is 55152593. The reversal of 55152579 is 97525155.

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

It is not a de Polignac number, because 55152579 - 2³ = 55152571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55152571) 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, 9192094 + ... + 9192099.

It is an arithmetic number, because the mean of its divisors is an integer number (18384194).

Almost surely, 2^55152579 is an apocalyptic number.

55152579 is a deficient number, since it is larger than the sum of its proper divisors (18384197).

55152579 is a wasteful number, since it uses less digits than its factorization.

55152579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384196.

The product of its digits is 78750, while the sum is 39.

The square root of 55152579 is about 7426.4782366880. The cubic root of 55152579 is about 380.6465884633.

The spelling of 55152579 in words is "fifty-five million, one hundred fifty-two thousand, five hundred seventy-nine".