55422661 has 8 divisors (see below), whose sum is σ = 63673344. Its totient is φ = 47255280.

The previous prime is 55422659. The next prime is 55422713. The reversal of 55422661 is 16622455.

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

It is a cyclic number.

It is not a de Polignac number, because 55422661 - 2¹ = 55422659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19390 + ... + 22063.

It is an arithmetic number, because the mean of its divisors is an integer number (7959168).

Almost surely, 2^55422661 is an apocalyptic number.

It is an amenable number.

55422661 is a deficient number, since it is larger than the sum of its proper divisors (8250683).

55422661 is a wasteful number, since it uses less digits than its factorization.

55422661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41651.

The product of its digits is 14400, while the sum is 31.

The square root of 55422661 is about 7444.6397495111. The cubic root of 55422661 is about 381.2669186795.

The spelling of 55422661 in words is "fifty-five million, four hundred twenty-two thousand, six hundred sixty-one".