225939457 has 4 divisors (see below), whose sum is σ = 226057216. Its totient is φ = 225821700.

The previous prime is 225939443. The next prime is 225939463. The reversal of 225939457 is 754939522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225939457 - 2¹⁵ = 225906689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225939437) 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, 55953 + ... + 59854.

It is an arithmetic number, because the mean of its divisors is an integer number (56514304).

Almost surely, 2^225939457 is an apocalyptic number.

It is an amenable number.

225939457 is a deficient number, since it is larger than the sum of its proper divisors (117759).

225939457 is a wasteful number, since it uses less digits than its factorization.

225939457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117758.

The product of its digits is 680400, while the sum is 46.

The square root of 225939457 is about 15031.2826132702. The cubic root of 225939457 is about 609.0655377802.

The spelling of 225939457 in words is "two hundred twenty-five million, nine hundred thirty-nine thousand, four hundred fifty-seven".