55803877 has 6 divisors (see below), whose sum is σ = 59279858. Its totient is φ = 52521024.

The previous prime is 55803863. The next prime is 55803883. The reversal of 55803877 is 77830855.

It can be written as a sum of positive squares in 3 ways, for example, as 7834401 + 47969476 = 2799^2 + 6926^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55803877 is a prime.

It is a super-2 number, since 2×55803877² = 6228145376462258, 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 (55803887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96258 + ... + 96835.

Almost surely, 2^55803877 is an apocalyptic number.

It is an amenable number.

55803877 is a deficient number, since it is larger than the sum of its proper divisors (3475981).

55803877 is a wasteful number, since it uses less digits than its factorization.

55803877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193127 (or 193110 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 55803877 is about 7470.1992610639. The cubic root of 55803877 is about 382.1390834244.

The spelling of 55803877 in words is "fifty-five million, eight hundred three thousand, eight hundred seventy-seven".