55457942 has 8 divisors (see below), whose sum is σ = 83785800. Its totient is φ = 27529344.

The previous prime is 55457939. The next prime is 55457957. The reversal of 55457942 is 24975455.

55457942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55457942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99467 + ... + 100022.

It is an arithmetic number, because the mean of its divisors is an integer number (10473225).

Almost surely, 2^55457942 is an apocalyptic number.

55457942 is a deficient number, since it is larger than the sum of its proper divisors (28327858).

55457942 is a wasteful number, since it uses less digits than its factorization.

55457942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199630.

The product of its digits is 252000, while the sum is 41.

The square root of 55457942 is about 7447.0089297650. The cubic root of 55457942 is about 381.3478039143.

The spelling of 55457942 in words is "fifty-five million, four hundred fifty-seven thousand, nine hundred forty-two".