225353537 has 4 divisors (see below), whose sum is σ = 225488340. Its totient is φ = 225218736.

The previous prime is 225353501. The next prime is 225353543. The reversal of 225353537 is 735353522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 123121216 + 102232321 = 11096^2 + 10111^2 .

It is a cyclic number.

It is not a de Polignac number, because 225353537 - 2¹⁴ = 225337153 is a prime.

It is a super-3 number, since 3×225353537³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225353497 and 225353506.

It is not an unprimeable number, because it can be changed into a prime (225353567) 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, 64862 + ... + 68247.

It is an arithmetic number, because the mean of its divisors is an integer number (56372085).

Almost surely, 2^225353537 is an apocalyptic number.

It is an amenable number.

225353537 is a deficient number, since it is larger than the sum of its proper divisors (134803).

225353537 is a wasteful number, since it uses less digits than its factorization.

225353537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134802.

The product of its digits is 94500, while the sum is 35.

The square root of 225353537 is about 15011.7799410996. The cubic root of 225353537 is about 608.5385933647.

The spelling of 225353537 in words is "two hundred twenty-five million, three hundred fifty-three thousand, five hundred thirty-seven".