55149877 has 8 divisors (see below), whose sum is σ = 55858176. Its totient is φ = 54446112.

The previous prime is 55149863. The next prime is 55149893. The reversal of 55149877 is 77894155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55149877 - 2²³ = 46761269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55149977) 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, 27873 + ... + 29785.

It is an arithmetic number, because the mean of its divisors is an integer number (6982272).

Almost surely, 2^55149877 is an apocalyptic number.

It is an amenable number.

55149877 is a deficient number, since it is larger than the sum of its proper divisors (708299).

55149877 is a wasteful number, since it uses less digits than its factorization.

55149877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267.

The product of its digits is 352800, while the sum is 46.

The square root of 55149877 is about 7426.2963178155. The cubic root of 55149877 is about 380.6403722301.

The spelling of 55149877 in words is "fifty-five million, one hundred forty-nine thousand, eight hundred seventy-seven".