1025315255 has 4 divisors (see below), whose sum is σ = 1230378312. Its totient is φ = 820252200.

The previous prime is 1025315233. The next prime is 1025315273. The reversal of 1025315255 is 5525135201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1025315255 - 2⁶ = 1025315191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102531521 + ... + 102531530.

It is an arithmetic number, because the mean of its divisors is an integer number (307594578).

Almost surely, 2^1025315255 is an apocalyptic number.

1025315255 is a deficient number, since it is larger than the sum of its proper divisors (205063057).

1025315255 is an equidigital number, since it uses as much as digits as its factorization.

1025315255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205063056.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1025315255 is about 32020.5442645811. The cubic root of 1025315255 is about 1008.3681962917.

The spelling of 1025315255 in words is "one billion, twenty-five million, three hundred fifteen thousand, two hundred fifty-five".