55583830 has 16 divisors (see below), whose sum is σ = 100198944. Its totient is φ = 22200640.

The previous prime is 55583791. The next prime is 55583831. The reversal of 55583830 is 3838555.

It is a self number, because there is not a number n which added to its sum of digits gives 55583830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55583831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (6262434).

Almost surely, 2^55583830 is an apocalyptic number.

55583830 is a deficient number, since it is larger than the sum of its proper divisors (44615114).

55583830 is a wasteful number, since it uses less digits than its factorization.

55583830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8231.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 55583830 is about 7455.4563911272. The cubic root of 55583830 is about 381.6361355244.

The spelling of 55583830 in words is "fifty-five million, five hundred eighty-three thousand, eight hundred thirty".