1255734253 has 4 divisors (see below), whose sum is σ = 1259232480. Its totient is φ = 1252236028.

The previous prime is 1255734251. The next prime is 1255734281. The reversal of 1255734253 is 3524375521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1255734253 - 2¹ = 1255734251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255734251) 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, 1748575 + ... + 1749292.

It is an arithmetic number, because the mean of its divisors is an integer number (314808120).

Almost surely, 2^1255734253 is an apocalyptic number.

It is an amenable number.

1255734253 is a deficient number, since it is larger than the sum of its proper divisors (3498227).

1255734253 is an equidigital number, since it uses as much as digits as its factorization.

1255734253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498226.

The product of its digits is 126000, while the sum is 37.

The square root of 1255734253 is about 35436.3408522946. The cubic root of 1255734253 is about 1078.8620424222.

The spelling of 1255734253 in words is "one billion, two hundred fifty-five million, seven hundred thirty-four thousand, two hundred fifty-three".