55340577 has 14 divisors (see below), whose sum is σ = 82974002. Its totient is φ = 36893232.

The previous prime is 55340543. The next prime is 55340587. The reversal of 55340577 is 77504355.

55340577 is a `hidden beast` number, since 55 + 34 + 0 + 577 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51969681 + 3370896 = 7209^2 + 1836^2 .

It is not a de Polignac number, because 55340577 - 2¹² = 55336481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55340587) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 37228 + ... + 38685.

Almost surely, 2^55340577 is an apocalyptic number.

It is an amenable number.

55340577 is a deficient number, since it is larger than the sum of its proper divisors (27633425).

55340577 is an frugal number, since it uses more digits than its factorization.

55340577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75931 (or 75916 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 55340577 is about 7439.1247469040. The cubic root of 55340577 is about 381.0785999410.

The spelling of 55340577 in words is "fifty-five million, three hundred forty thousand, five hundred seventy-seven".