55426577 has 4 divisors (see below), whose sum is σ = 55559280. Its totient is φ = 55293876.

The previous prime is 55426561. The next prime is 55426597. The reversal of 55426577 is 77562455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55426577 - 2⁴ = 55426561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55426507) 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, 65723 + ... + 66560.

It is an arithmetic number, because the mean of its divisors is an integer number (13889820).

Almost surely, 2^55426577 is an apocalyptic number.

It is an amenable number.

55426577 is a deficient number, since it is larger than the sum of its proper divisors (132703).

55426577 is a wasteful number, since it uses less digits than its factorization.

55426577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132702.

The product of its digits is 294000, while the sum is 41.

The square root of 55426577 is about 7444.9027528907. The cubic root of 55426577 is about 381.2758981959.

The spelling of 55426577 in words is "fifty-five million, four hundred twenty-six thousand, five hundred seventy-seven".