225757047 has 4 divisors (see below), whose sum is σ = 301009400. Its totient is φ = 150504696.

The previous prime is 225757043. The next prime is 225757061. The reversal of 225757047 is 740757522.

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

It is not a de Polignac number, because 225757047 - 2² = 225757043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225756996 and 225757014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225757043) 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, 37626172 + ... + 37626177.

It is an arithmetic number, because the mean of its divisors is an integer number (75252350).

Almost surely, 2^225757047 is an apocalyptic number.

225757047 is a deficient number, since it is larger than the sum of its proper divisors (75252353).

225757047 is an equidigital number, since it uses as much as digits as its factorization.

225757047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75252352.

The product of its (nonzero) digits is 137200, while the sum is 39.

The square root of 225757047 is about 15025.2137089627. The cubic root of 225757047 is about 608.9015859587.

The spelling of 225757047 in words is "two hundred twenty-five million, seven hundred fifty-seven thousand, forty-seven".