55450630 has 16 divisors (see below), whose sum is σ = 103031424. Its totient is φ = 21464640.

The previous prime is 55450627. The next prime is 55450643. The reversal of 55450630 is 3605455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89127 + ... + 89746.

It is an arithmetic number, because the mean of its divisors is an integer number (6439464).

Almost surely, 2^55450630 is an apocalyptic number.

55450630 is a deficient number, since it is larger than the sum of its proper divisors (47580794).

55450630 is a wasteful number, since it uses less digits than its factorization.

55450630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178911.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 55450630 is about 7446.5179782231. The cubic root of 55450630 is about 381.3310432388.

The spelling of 55450630 in words is "fifty-five million, four hundred fifty thousand, six hundred thirty".