55272030 has 32 divisors (see below), whose sum is σ = 144713088. Its totient is φ = 13399200.

The previous prime is 55272001. The next prime is 55272031. The reversal of 55272030 is 3027255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55272031) 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, 83416 + ... + 84075.

It is an arithmetic number, because the mean of its divisors is an integer number (4522284).

Almost surely, 2^55272030 is an apocalyptic number.

55272030 is an abundant number, since it is smaller than the sum of its proper divisors (89441058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55272030 is a wasteful number, since it uses less digits than its factorization.

55272030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167512.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 55272030 is about 7434.5161241334. The cubic root of 55272030 is about 380.9211953216.

Adding to 55272030 its reverse (3027255), we get a palindrome (58299285).

It can be divided in two parts, 5527 and 2030, that added together give a palindrome (7557).

The spelling of 55272030 in words is "fifty-five million, two hundred seventy-two thousand, thirty".