225272901 has 16 divisors (see below), whose sum is σ = 351646848. Its totient is φ = 125587200.

The previous prime is 225272893. The next prime is 225272903. The reversal of 225272901 is 109272522.

225272901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225272901 - 2³ = 225272893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225272903) 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, 129960 + ... + 131681.

It is an arithmetic number, because the mean of its divisors is an integer number (21977928).

Almost surely, 2^225272901 is an apocalyptic number.

225272901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

225272901 is a deficient number, since it is larger than the sum of its proper divisors (126373947).

225272901 is a wasteful number, since it uses less digits than its factorization.

225272901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261692.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 225272901 is about 15009.0939433398. The cubic root of 225272901 is about 608.4660022817.

The spelling of 225272901 in words is "two hundred twenty-five million, two hundred seventy-two thousand, nine hundred one".