55981346 has 8 divisors (see below), whose sum is σ = 84633600. Its totient is φ = 27770148.

The previous prime is 55981337. The next prime is 55981361. The reversal of 55981346 is 64318955.

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

It is a super-2 number, since 2×55981346² = 6267822199943432, which contains 22 as substring.

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, 109946 + ... + 110453.

It is an arithmetic number, because the mean of its divisors is an integer number (10579200).

Almost surely, 2^55981346 is an apocalyptic number.

55981346 is a deficient number, since it is larger than the sum of its proper divisors (28652254).

55981346 is a wasteful number, since it uses less digits than its factorization.

55981346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220528.

The product of its digits is 129600, while the sum is 41.

The square root of 55981346 is about 7482.0682969350. The cubic root of 55981346 is about 382.5437511007.

The spelling of 55981346 in words is "fifty-five million, nine hundred eighty-one thousand, three hundred forty-six".