55874553 has 24 divisors (see below), whose sum is σ = 87278400. Its totient is φ = 31701600.

The previous prime is 55874549. The next prime is 55874557. The reversal of 55874553 is 35547855.

It is an interprime number because it is at equal distance from previous prime (55874549) and next prime (55874557).

It is not a de Polignac number, because 55874553 - 2² = 55874549 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55874557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20628 + ... + 23178.

It is an arithmetic number, because the mean of its divisors is an integer number (3636600).

Almost surely, 2^55874553 is an apocalyptic number.

It is an amenable number.

55874553 is a deficient number, since it is larger than the sum of its proper divisors (31403847).

55874553 is a wasteful number, since it uses less digits than its factorization.

55874553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717 (or 2710 counting only the distinct ones).

The product of its digits is 420000, while the sum is 42.

The square root of 55874553 is about 7474.9282939705. The cubic root of 55874553 is about 382.3003426377.

The spelling of 55874553 in words is "fifty-five million, eight hundred seventy-four thousand, five hundred fifty-three".