55623066 has 8 divisors (see below), whose sum is σ = 111246144. Its totient is φ = 18541020.

The previous prime is 55623053. The next prime is 55623077. The reversal of 55623066 is 66032655.

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

55623066 is an admirable 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, 4635250 + ... + 4635261.

It is an arithmetic number, because the mean of its divisors is an integer number (13905768).

Almost surely, 2^55623066 is an apocalyptic number.

55623066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55623066 is a wasteful number, since it uses less digits than its factorization.

55623066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270516.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 55623066 is about 7458.0872883066. The cubic root of 55623066 is about 381.7259119546.

The spelling of 55623066 in words is "fifty-five million, six hundred twenty-three thousand, sixty-six".