55446142 has 8 divisors (see below), whose sum is σ = 87546600. Its totient is φ = 26263944.

The previous prime is 55446137. The next prime is 55446179. The reversal of 55446142 is 24164455.

It is a happy number.

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, 729517 + ... + 729592.

It is an arithmetic number, because the mean of its divisors is an integer number (10943325).

Almost surely, 2^55446142 is an apocalyptic number.

55446142 is a deficient number, since it is larger than the sum of its proper divisors (32100458).

55446142 is a wasteful number, since it uses less digits than its factorization.

55446142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459130.

The product of its digits is 19200, while the sum is 31.

The square root of 55446142 is about 7446.2166232255. The cubic root of 55446142 is about 381.3207550486.

The spelling of 55446142 in words is "fifty-five million, four hundred forty-six thousand, one hundred forty-two".