55651766 has 8 divisors (see below), whose sum is σ = 87107184. Its totient is φ = 26616040.

The previous prime is 55651759. The next prime is 55651777. The reversal of 55651766 is 66715655.

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, 604865 + ... + 604956.

It is an arithmetic number, because the mean of its divisors is an integer number (10888398).

Almost surely, 2^55651766 is an apocalyptic number.

55651766 is a deficient number, since it is larger than the sum of its proper divisors (31455418).

55651766 is a wasteful number, since it uses less digits than its factorization.

55651766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209846.

The product of its digits is 189000, while the sum is 41.

The square root of 55651766 is about 7460.0111259971. The cubic root of 55651766 is about 381.7915540868.

The spelling of 55651766 in words is "fifty-five million, six hundred fifty-one thousand, seven hundred sixty-six".