2129256575 has 12 divisors (see below), whose sum is σ = 2711638200. Its totient is φ = 1657366560.

The previous prime is 2129256553. The next prime is 2129256593. The reversal of 2129256575 is 5756529212.

It is not a de Polignac number, because 2129256575 - 2¹⁰ = 2129255551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1150025 + ... + 1151874.

It is an arithmetic number, because the mean of its divisors is an integer number (225969850).

Almost surely, 2^2129256575 is an apocalyptic number.

2129256575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2129256575 is a deficient number, since it is larger than the sum of its proper divisors (582381625).

2129256575 is a wasteful number, since it uses less digits than its factorization.

2129256575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301946 (or 2301941 counting only the distinct ones).

The product of its digits is 378000, while the sum is 44.

The square root of 2129256575 is about 46143.8682275338. The cubic root of 2129256575 is about 1286.4986426390.

The spelling of 2129256575 in words is "two billion, one hundred twenty-nine million, two hundred fifty-six thousand, five hundred seventy-five".