55775423 has 8 divisors (see below), whose sum is σ = 61754880. Its totient is φ = 49947480.

The previous prime is 55775413. The next prime is 55775509. The reversal of 55775423 is 32457755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55775423 - 2⁴ = 55775407 is a prime.

It is a super-2 number, since 2×55775423² = 6221795621657858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55775413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37103 + ... + 38576.

It is an arithmetic number, because the mean of its divisors is an integer number (7719360).

Almost surely, 2^55775423 is an apocalyptic number.

55775423 is a deficient number, since it is larger than the sum of its proper divisors (5979457).

55775423 is a wasteful number, since it uses less digits than its factorization.

55775423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75757.

The product of its digits is 147000, while the sum is 38.

The square root of 55775423 is about 7468.2945174919. The cubic root of 55775423 is about 382.0741223818.

The spelling of 55775423 in words is "fifty-five million, seven hundred seventy-five thousand, four hundred twenty-three".