1255546253 has 8 divisors (see below), whose sum is σ = 1359135288. Its totient is φ = 1152958464.

The previous prime is 1255546249. The next prime is 1255546261. The reversal of 1255546253 is 3526455521.

It can be written as a sum of positive squares in 4 ways, for example, as 21921124 + 1233625129 = 4682^2 + 35123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255546253 - 2² = 1255546249 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 (1255516253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247700 + ... + 252717.

It is an arithmetic number, because the mean of its divisors is an integer number (169891911).

Almost surely, 2^1255546253 is an apocalyptic number.

1255546253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1255546253 is a deficient number, since it is larger than the sum of its proper divisors (103589035).

1255546253 is a wasteful number, since it uses less digits than its factorization.

1255546253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500623.

The product of its digits is 180000, while the sum is 38.

The square root of 1255546253 is about 35433.6881089169. The cubic root of 1255546253 is about 1078.8081997703.

The spelling of 1255546253 in words is "one billion, two hundred fifty-five million, five hundred forty-six thousand, two hundred fifty-three".