1255262515 has 16 divisors (see below), whose sum is σ = 1628194176. Its totient is φ = 923529600.

The previous prime is 1255262483. The next prime is 1255262537. The reversal of 1255262515 is 5152625521.

It is not a de Polignac number, because 1255262515 - 2⁵ = 1255262483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18016 + ... + 53245.

It is an arithmetic number, because the mean of its divisors is an integer number (101762136).

Almost surely, 2^1255262515 is an apocalyptic number.

1255262515 is a deficient number, since it is larger than the sum of its proper divisors (372931661).

1255262515 is a wasteful number, since it uses less digits than its factorization.

1255262515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71550.

The product of its digits is 30000, while the sum is 34.

The square root of 1255262515 is about 35429.6840939910. The cubic root of 1255262515 is about 1078.7269278561.

The spelling of 1255262515 in words is "one billion, two hundred fifty-five million, two hundred sixty-two thousand, five hundred fifteen".