220037225 has 24 divisors (see below), whose sum is σ = 284648448. Its totient is φ = 168537600.

The previous prime is 220037197. The next prime is 220037249. The reversal of 220037225 is 522730022.

It is not a de Polignac number, because 220037225 - 2⁶ = 220037161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220037225.

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, 73712 + ... + 76638.

It is an arithmetic number, because the mean of its divisors is an integer number (11860352).

Almost surely, 2^220037225 is an apocalyptic number.

220037225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220037225 is a deficient number, since it is larger than the sum of its proper divisors (64611223).

220037225 is a wasteful number, since it uses less digits than its factorization.

220037225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 220037225 is about 14833.6517756081. The cubic root of 220037225 is about 603.7151202868.

Adding to 220037225 its reverse (522730022), we get a palindrome (742767247).

The spelling of 220037225 in words is "two hundred twenty million, thirty-seven thousand, two hundred twenty-five".