55677901 has 4 divisors (see below), whose sum is σ = 55765404. Its totient is φ = 55590400.

The previous prime is 55677899. The next prime is 55677949. The reversal of 55677901 is 10977655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41615401 + 14062500 = 6451^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 55677901 - 2¹ = 55677899 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 (55677001) 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, 42790 + ... + 44071.

It is an arithmetic number, because the mean of its divisors is an integer number (13941351).

Almost surely, 2^55677901 is an apocalyptic number.

It is an amenable number.

55677901 is a deficient number, since it is larger than the sum of its proper divisors (87503).

55677901 is an equidigital number, since it uses as much as digits as its factorization.

55677901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87502.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 55677901 is about 7461.7625933823. The cubic root of 55677901 is about 381.8513099666.

The spelling of 55677901 in words is "fifty-five million, six hundred seventy-seven thousand, nine hundred one".