253499925 has 48 divisors (see below), whose sum is σ = 490718592. Its totient is φ = 113049600.

The previous prime is 253499923. The next prime is 253499959. The reversal of 253499925 is 529994352.

It is a happy number.

It is not a de Polignac number, because 253499925 - 2¹ = 253499923 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253499923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15637 + ... + 27413.

It is an arithmetic number, because the mean of its divisors is an integer number (10223304).

Almost surely, 2^253499925 is an apocalyptic number.

253499925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253499925 is a deficient number, since it is larger than the sum of its proper divisors (237218667).

253499925 is a wasteful number, since it uses less digits than its factorization.

253499925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11838 (or 11833 counting only the distinct ones).

The product of its digits is 874800, while the sum is 48.

The square root of 253499925 is about 15921.6809728119. The cubic root of 253499925 is about 632.8866648940.

The spelling of 253499925 in words is "two hundred fifty-three million, four hundred ninety-nine thousand, nine hundred twenty-five".