55494877 has 4 divisors (see below), whose sum is σ = 58415680. Its totient is φ = 52574076.

The previous prime is 55494863. The next prime is 55494911. The reversal of 55494877 is 77849455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55494877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55494877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55495877) 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, 1460373 + ... + 1460410.

It is an arithmetic number, because the mean of its divisors is an integer number (14603920).

Almost surely, 2^55494877 is an apocalyptic number.

It is an amenable number.

55494877 is a deficient number, since it is larger than the sum of its proper divisors (2920803).

55494877 is a wasteful number, since it uses less digits than its factorization.

55494877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920802.

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

The square root of 55494877 is about 7449.4883716937. The cubic root of 55494877 is about 381.4324443637.

It can be divided in two parts, 554948 and 77, that added together give a square (555025 = 745²).

The spelling of 55494877 in words is "fifty-five million, four hundred ninety-four thousand, eight hundred seventy-seven".