55553079 has 4 divisors (see below), whose sum is σ = 74070776. Its totient is φ = 37035384.

The previous prime is 55553053. The next prime is 55553081. The reversal of 55553079 is 97035555.

It is a happy number.

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

It is not a de Polignac number, because 55553079 - 2¹⁷ = 55422007 is a prime.

It is a super-2 number, since 2×55553079² = 6172289172760482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55553779) 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, 9258844 + ... + 9258849.

It is an arithmetic number, because the mean of its divisors is an integer number (18517694).

Almost surely, 2^55553079 is an apocalyptic number.

55553079 is a deficient number, since it is larger than the sum of its proper divisors (18517697).

55553079 is a wasteful number, since it uses less digits than its factorization.

55553079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18517696.

The product of its (nonzero) digits is 118125, while the sum is 39.

The square root of 55553079 is about 7453.3937907506. The cubic root of 55553079 is about 381.5657442034.

The spelling of 55553079 in words is "fifty-five million, five hundred fifty-three thousand, seventy-nine".