220030525 has 24 divisors (see below), whose sum is σ = 320541984. Its totient is φ = 147710400.

The previous prime is 220030487. The next prime is 220030553. The reversal of 220030525 is 525030022.

It is not a de Polignac number, because 220030525 - 2²³ = 211641917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27199 + ... + 34348.

It is an arithmetic number, because the mean of its divisors is an integer number (13355916).

Almost surely, 2^220030525 is an apocalyptic number.

220030525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220030525 is a deficient number, since it is larger than the sum of its proper divisors (100511459).

220030525 is a wasteful number, since it uses less digits than its factorization.

220030525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61581 (or 61576 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 220030525 is about 14833.4259360405. The cubic root of 220030525 is about 603.7089926382.

Adding to 220030525 its reverse (525030022), we get a palindrome (745060547).

The spelling of 220030525 in words is "two hundred twenty million, thirty thousand, five hundred twenty-five".