55661422 has 8 divisors (see below), whose sum is σ = 83720736. Its totient is φ = 27754512.

The previous prime is 55661387. The next prime is 55661423. The reversal of 55661422 is 22416655.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55661423) 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, 37183 + ... + 38650.

It is an arithmetic number, because the mean of its divisors is an integer number (10465092).

Almost surely, 2^55661422 is an apocalyptic number.

55661422 is a deficient number, since it is larger than the sum of its proper divisors (28059314).

55661422 is a wasteful number, since it uses less digits than its factorization.

55661422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76202.

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

The square root of 55661422 is about 7460.6582819480. The cubic root of 55661422 is about 381.8136340453.

The spelling of 55661422 in words is "fifty-five million, six hundred sixty-one thousand, four hundred twenty-two".