253147256 has 8 divisors (see below), whose sum is σ = 474651120. Its totient is φ = 126573624.

The previous prime is 253147247. The next prime is 253147259. The reversal of 253147256 is 652741352.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253147259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15821696 + ... + 15821711.

It is an arithmetic number, because the mean of its divisors is an integer number (59331390).

Almost surely, 2^253147256 is an apocalyptic number.

It is an amenable number.

253147256 is a deficient number, since it is larger than the sum of its proper divisors (221503864).

253147256 is a wasteful number, since it uses less digits than its factorization.

253147256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31643413 (or 31643409 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 253147256 is about 15910.6019999245. The cubic root of 253147256 is about 632.5930381242.

The spelling of 253147256 in words is "two hundred fifty-three million, one hundred forty-seven thousand, two hundred fifty-six".