225513537 has 8 divisors (see below), whose sum is σ = 304920000. Its totient is φ = 148224720.

The previous prime is 225513529. The next prime is 225513559. The reversal of 225513537 is 735315522.

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

It is not a de Polignac number, because 225513537 - 2³ = 225513529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225513498 and 225513507.

It is not an unprimeable number, because it can be changed into a prime (225513577) 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, 529162 + ... + 529587.

It is an arithmetic number, because the mean of its divisors is an integer number (38115000).

Almost surely, 2^225513537 is an apocalyptic number.

It is an amenable number.

225513537 is a deficient number, since it is larger than the sum of its proper divisors (79406463).

225513537 is a wasteful number, since it uses less digits than its factorization.

225513537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058823.

The product of its digits is 31500, while the sum is 33.

The square root of 225513537 is about 15017.1081437140. The cubic root of 225513537 is about 608.6825791838.

The spelling of 225513537 in words is "two hundred twenty-five million, five hundred thirteen thousand, five hundred thirty-seven".