1255038263 has 4 divisors (see below), whose sum is σ = 1309605168. Its totient is φ = 1200471360.

The previous prime is 1255038259. The next prime is 1255038287. The reversal of 1255038263 is 3628305521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3628305521 = 2909 ⋅1247269.

It is a cyclic number.

It is not a de Polignac number, because 1255038263 - 2² = 1255038259 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 (1255038163) 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, 27283418 + ... + 27283463.

It is an arithmetic number, because the mean of its divisors is an integer number (327401292).

Almost surely, 2^1255038263 is an apocalyptic number.

1255038263 is a deficient number, since it is larger than the sum of its proper divisors (54566905).

1255038263 is an equidigital number, since it uses as much as digits as its factorization.

1255038263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54566904.

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

The square root of 1255038263 is about 35426.5192052507. The cubic root of 1255038263 is about 1078.6626860275.

The spelling of 1255038263 in words is "one billion, two hundred fifty-five million, thirty-eight thousand, two hundred sixty-three".