55506622 has 4 divisors (see below), whose sum is σ = 83259936. Its totient is φ = 27753310.

The previous prime is 55506599. The next prime is 55506637. The reversal of 55506622 is 22660555.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13876654 + ... + 13876657.

It is an arithmetic number, because the mean of its divisors is an integer number (20814984).

Almost surely, 2^55506622 is an apocalyptic number.

55506622 is a deficient number, since it is larger than the sum of its proper divisors (27753314).

55506622 is a wasteful number, since it uses less digits than its factorization.

55506622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27753313.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 55506622 is about 7450.2766391591. The cubic root of 55506622 is about 381.4593514003.

The spelling of 55506622 in words is "fifty-five million, five hundred six thousand, six hundred twenty-two".