55740442 has 8 divisors (see below), whose sum is σ = 84164832. Its totient is φ = 27685500.

The previous prime is 55740439. The next prime is 55740469. The reversal of 55740442 is 24404755.

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

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, 91984 + ... + 92587.

It is an arithmetic number, because the mean of its divisors is an integer number (10520604).

Almost surely, 2^55740442 is an apocalyptic number.

55740442 is a deficient number, since it is larger than the sum of its proper divisors (28424390).

55740442 is a wasteful number, since it uses less digits than its factorization.

55740442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184724.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 55740442 is about 7465.9521830775. The cubic root of 55740442 is about 381.9942297859.

The spelling of 55740442 in words is "fifty-five million, seven hundred forty thousand, four hundred forty-two".