55005731830 has 32 divisors (see below), whose sum is σ = 113233489920. Its totient is φ = 18845967840.

The previous prime is 55005731821. The next prime is 55005731839. The reversal of 55005731830 is 3813750055.

It is an interprime number because it is at equal distance from previous prime (55005731821) and next prime (55005731839).

It is a self number, because there is not a number n which added to its sum of digits gives 55005731830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005731839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172306 + ... + 373765.

It is an arithmetic number, because the mean of its divisors is an integer number (3538546560).

Almost surely, 2^55005731830 is an apocalyptic number.

55005731830 is an abundant number, since it is smaller than the sum of its proper divisors (58227758090).

55005731830 is a wasteful number, since it uses less digits than its factorization.

55005731830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547524.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 55005731830 in words is "fifty-five billion, five million, seven hundred thirty-one thousand, eight hundred thirty".