225151751 has 4 divisors (see below), whose sum is σ = 245620104. Its totient is φ = 204683400.

The previous prime is 225151739. The next prime is 225151777. The reversal of 225151751 is 157151522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225151751 - 2¹⁴ = 225135367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225151051) 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, 10234160 + ... + 10234181.

It is an arithmetic number, because the mean of its divisors is an integer number (61405026).

Almost surely, 2^225151751 is an apocalyptic number.

225151751 is a deficient number, since it is larger than the sum of its proper divisors (20468353).

225151751 is a wasteful number, since it uses less digits than its factorization.

225151751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20468352.

The product of its digits is 3500, while the sum is 29.

The square root of 225151751 is about 15005.0575140517. The cubic root of 225151751 is about 608.3569066406.

The spelling of 225151751 in words is "two hundred twenty-five million, one hundred fifty-one thousand, seven hundred fifty-one".