225041651 has 4 divisors (see below), whose sum is σ = 227144952. Its totient is φ = 222938352.

The previous prime is 225041633. The next prime is 225041693. The reversal of 225041651 is 156140522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156140522 = 2 ⋅78070261.

It is a de Polignac number, because none of the positive numbers 2^k-225041651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225041651.

It is not an unprimeable number, because it can be changed into a prime (225041611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051490 + ... + 1051703.

It is an arithmetic number, because the mean of its divisors is an integer number (56786238).

Almost surely, 2^225041651 is an apocalyptic number.

225041651 is a deficient number, since it is larger than the sum of its proper divisors (2103301).

225041651 is a wasteful number, since it uses less digits than its factorization.

225041651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103300.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 225041651 is about 15001.3883024205. The cubic root of 225041651 is about 608.2577275818.

The spelling of 225041651 in words is "two hundred twenty-five million, forty-one thousand, six hundred fifty-one".