253491425 has 12 divisors (see below), whose sum is σ = 342905136. Its totient is φ = 184357200.

The previous prime is 253491389. The next prime is 253491449. The reversal of 253491425 is 524194352.

It is not a de Polignac number, because 253491425 - 2¹⁰ = 253490401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 460619 + ... + 461168.

It is an arithmetic number, because the mean of its divisors is an integer number (28575428).

Almost surely, 2^253491425 is an apocalyptic number.

253491425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253491425 is a deficient number, since it is larger than the sum of its proper divisors (89413711).

253491425 is a wasteful number, since it uses less digits than its factorization.

253491425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921808 (or 921803 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 253491425 is about 15921.4140389602. The cubic root of 253491425 is about 632.8795911288.

The spelling of 253491425 in words is "two hundred fifty-three million, four hundred ninety-one thousand, four hundred twenty-five".