55423630 has 16 divisors (see below), whose sum is σ = 99907344. Its totient is φ = 22137280.

The previous prime is 55423607. The next prime is 55423661. The reversal of 55423630 is 3632455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3969 + ... + 11251.

It is an arithmetic number, because the mean of its divisors is an integer number (6244209).

Almost surely, 2^55423630 is an apocalyptic number.

55423630 is a deficient number, since it is larger than the sum of its proper divisors (44483714).

55423630 is a wasteful number, since it uses less digits than its factorization.

55423630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 55423630 is about 7444.7048296088. The cubic root of 55423630 is about 381.2691406676.

The spelling of 55423630 in words is "fifty-five million, four hundred twenty-three thousand, six hundred thirty".