55190479 has 4 divisors (see below), whose sum is σ = 55207440. Its totient is φ = 55173520.

The previous prime is 55190467. The next prime is 55190489. The reversal of 55190479 is 97409155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97409155 = 5 ⋅19481831.

It is a cyclic number.

It is not a de Polignac number, because 55190479 - 2¹⁹ = 54666191 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55190419) 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, 1894 + ... + 10675.

It is an arithmetic number, because the mean of its divisors is an integer number (13801860).

Almost surely, 2^55190479 is an apocalyptic number.

55190479 is a deficient number, since it is larger than the sum of its proper divisors (16961).

55190479 is a wasteful number, since it uses less digits than its factorization.

55190479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 55190479 is about 7429.0294790100. The cubic root of 55190479 is about 380.7337599832.

The spelling of 55190479 in words is "fifty-five million, one hundred ninety thousand, four hundred seventy-nine".