55877494 has 4 divisors (see below), whose sum is σ = 83816244. Its totient is φ = 27938746.

The previous prime is 55877477. The next prime is 55877513. The reversal of 55877494 is 49477855.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13969372 + ... + 13969375.

It is an arithmetic number, because the mean of its divisors is an integer number (20954061).

Almost surely, 2^55877494 is an apocalyptic number.

55877494 is a deficient number, since it is larger than the sum of its proper divisors (27938750).

55877494 is a wasteful number, since it uses less digits than its factorization.

55877494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27938749.

The product of its digits is 1411200, while the sum is 49.

The square root of 55877494 is about 7475.1250156770. The cubic root of 55877494 is about 382.3070500773.

The spelling of 55877494 in words is "fifty-five million, eight hundred seventy-seven thousand, four hundred ninety-four".