55615622 has 8 divisors (see below), whose sum is σ = 87814200. Its totient is φ = 26344224.

The previous prime is 55615607. The next prime is 55615631. The reversal of 55615622 is 22651655.

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, 731747 + ... + 731822.

It is an arithmetic number, because the mean of its divisors is an integer number (10976775).

Almost surely, 2^55615622 is an apocalyptic number.

55615622 is a deficient number, since it is larger than the sum of its proper divisors (32198578).

55615622 is a wasteful number, since it uses less digits than its factorization.

55615622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463590.

The product of its digits is 18000, while the sum is 32.

The square root of 55615622 is about 7457.5882160387. The cubic root of 55615622 is about 381.7088824819.

The spelling of 55615622 in words is "fifty-five million, six hundred fifteen thousand, six hundred twenty-two".