55564994 has 8 divisors (see below), whose sum is σ = 83384208. Its totient is φ = 27770260.

The previous prime is 55564991. The next prime is 55565011. The reversal of 55564994 is 49946555.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55564991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (10423026).

Almost surely, 2^55564994 is an apocalyptic number.

55564994 is a deficient number, since it is larger than the sum of its proper divisors (27819214).

55564994 is a wasteful number, since it uses less digits than its factorization.

55564994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12240.

The product of its digits is 972000, while the sum is 47.

The square root of 55564994 is about 7454.1930482112. The cubic root of 55564994 is about 381.5930216044.

The spelling of 55564994 in words is "fifty-five million, five hundred sixty-four thousand, nine hundred ninety-four".