55874566 has 8 divisors (see below), whose sum is σ = 91431144. Its totient is φ = 25397520.

The previous prime is 55874557. The next prime is 55874591. The reversal of 55874566 is 66547855.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269855 + ... + 1269898.

It is an arithmetic number, because the mean of its divisors is an integer number (11428893).

Almost surely, 2^55874566 is an apocalyptic number.

55874566 is a deficient number, since it is larger than the sum of its proper divisors (35556578).

55874566 is a wasteful number, since it uses less digits than its factorization.

55874566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539766.

The product of its digits is 1008000, while the sum is 46.

The square root of 55874566 is about 7474.9291635440. The cubic root of 55874566 is about 382.3003722868.

Subtracting 55874566 from its reverse (66547855), we obtain a square (10673289 = 3267²).

It can be divided in two parts, 5587 and 4566, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 55874566 in words is "fifty-five million, eight hundred seventy-four thousand, five hundred sixty-six".