225850531 has 4 divisors (see below), whose sum is σ = 233136064. Its totient is φ = 218565000.

The previous prime is 225850489. The next prime is 225850561. The reversal of 225850531 is 135058522.

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

It is a cyclic number.

It is not a de Polignac number, because 225850531 - 2⁷ = 225850403 is a prime.

It is a super-2 number, since 2×225850531² = 102016924705963922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 7285501 = 225850531 / (2 + 2 + 5 + 8 + 5 + 0 + 5 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225850493 and 225850502.

It is not an unprimeable number, because it can be changed into a prime (225850561) 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, 3642720 + ... + 3642781.

It is an arithmetic number, because the mean of its divisors is an integer number (58284016).

Almost surely, 2^225850531 is an apocalyptic number.

225850531 is a deficient number, since it is larger than the sum of its proper divisors (7285533).

225850531 is an equidigital number, since it uses as much as digits as its factorization.

225850531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285532.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 225850531 is about 15028.3242911510. The cubic root of 225850531 is about 608.9856212840.

The spelling of 225850531 in words is "two hundred twenty-five million, eight hundred fifty thousand, five hundred thirty-one".