225075090 has 32 divisors (see below), whose sum is σ = 558809280. Its totient is φ = 57950144.

The previous prime is 225075049. The next prime is 225075091. The reversal of 225075090 is 90570522.

It is a happy number.

It is a super-2 number, since 2×225075090² = 101317592277016200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (225075091) 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, 128484 + ... + 130223.

It is an arithmetic number, because the mean of its divisors is an integer number (17462790).

Almost surely, 2^225075090 is an apocalyptic number.

225075090 is an abundant number, since it is smaller than the sum of its proper divisors (333734190).

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

225075090 is a wasteful number, since it uses less digits than its factorization.

225075090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258746.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 225075090 is about 15002.5027912012. The cubic root of 225075090 is about 608.2878531500.

The spelling of 225075090 in words is "two hundred twenty-five million, seventy-five thousand, ninety".