253223725 has 6 divisors (see below), whose sum is σ = 313997450. Its totient is φ = 202578960.

The previous prime is 253223723. The next prime is 253223741. The reversal of 253223725 is 527322352.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 381924 + 252841801 = 618^2 + 15901^2 .

It is not a de Polignac number, because 253223725 - 2¹ = 253223723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253223723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5064450 + ... + 5064499.

Almost surely, 2^253223725 is an apocalyptic number.

253223725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253223725 is a deficient number, since it is larger than the sum of its proper divisors (60773725).

253223725 is a wasteful number, since it uses less digits than its factorization.

253223725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128959 (or 10128954 counting only the distinct ones).

The product of its digits is 25200, while the sum is 31.

The square root of 253223725 is about 15913.0049016520. The cubic root of 253223725 is about 632.6567281780.

The spelling of 253223725 in words is "two hundred fifty-three million, two hundred twenty-three thousand, seven hundred twenty-five".