55404146 has 8 divisors (see below), whose sum is σ = 94978560. Its totient is φ = 23744628.

The previous prime is 55404137. The next prime is 55404179. The reversal of 55404146 is 64140455.

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, 1978706 + ... + 1978733.

It is an arithmetic number, because the mean of its divisors is an integer number (11872320).

Almost surely, 2^55404146 is an apocalyptic number.

55404146 is a deficient number, since it is larger than the sum of its proper divisors (39574414).

55404146 is a wasteful number, since it uses less digits than its factorization.

55404146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957448.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 55404146 is about 7443.3961334864. The cubic root of 55404146 is about 381.2244574485.

The spelling of 55404146 in words is "fifty-five million, four hundred four thousand, one hundred forty-six".