225008749 has 8 divisors (see below), whose sum is σ = 257265728. Its totient is φ = 192780000.

The previous prime is 225008743. The next prime is 225008761. The reversal of 225008749 is 947800522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225008749 - 2³ = 225008741 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 (225008741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14374 + ... + 25624.

It is an arithmetic number, because the mean of its divisors is an integer number (32158216).

Almost surely, 2^225008749 is an apocalyptic number.

It is an amenable number.

225008749 is a deficient number, since it is larger than the sum of its proper divisors (32256979).

225008749 is a wasteful number, since it uses less digits than its factorization.

225008749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14115.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 225008749 is about 15000.2916304984. The cubic root of 225008749 is about 608.2280828900.

The spelling of 225008749 in words is "two hundred twenty-five million, eight thousand, seven hundred forty-nine".