55874457 has 12 divisors (see below), whose sum is σ = 80872740. Its totient is φ = 37173408.

The previous prime is 55874453. The next prime is 55874471. The reversal of 55874457 is 75447855.

55874457 is a `hidden beast` number, since 558 + 7 + 44 + 57 = 666.

55874457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42653961 + 13220496 = 6531^2 + 3636^2 .

It is not a de Polignac number, because 55874457 - 2² = 55874453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55874453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1518 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (6739395).

Almost surely, 2^55874457 is an apocalyptic number.

It is an amenable number.

55874457 is a deficient number, since it is larger than the sum of its proper divisors (24998283).

55874457 is a wasteful number, since it uses less digits than its factorization.

55874457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12712 (or 12709 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 55874457 is about 7474.9218725014. The cubic root of 55874457 is about 382.3001236897.

The spelling of 55874457 in words is "fifty-five million, eight hundred seventy-four thousand, four hundred fifty-seven".