55572230 has 16 divisors (see below), whose sum is σ = 114320160. Its totient is φ = 19053312.

The previous prime is 55572221. The next prime is 55572239. The reversal of 55572230 is 3227555.

It is an interprime number because it is at equal distance from previous prime (55572221) and next prime (55572239).

It is a junction number, because it is equal to n+sod(n) for n = 55572193 and 55572202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55572239) 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, 396875 + ... + 397014.

It is an arithmetic number, because the mean of its divisors is an integer number (7145010).

Almost surely, 2^55572230 is an apocalyptic number.

55572230 is an abundant number, since it is smaller than the sum of its proper divisors (58747930).

55572230 is a wasteful number, since it uses less digits than its factorization.

55572230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793903.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 55572230 is about 7454.6783968190. The cubic root of 55572230 is about 381.6095853139.

Adding to 55572230 its reverse (3227555), we get a palindrome (58799785).

The spelling of 55572230 in words is "fifty-five million, five hundred seventy-two thousand, two hundred thirty".