509141025 has 24 divisors (see below), whose sum is σ = 935312160. Its totient is φ = 271541520.

The previous prime is 509141021. The next prime is 509141033. The reversal of 509141025 is 520141905.

It is not a de Polignac number, because 509141025 - 2² = 509141021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 509141025.

It is not an unprimeable number, because it can be changed into a prime (509141021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376467 + ... + 377816.

It is an arithmetic number, because the mean of its divisors is an integer number (38971340).

Almost surely, 2^509141025 is an apocalyptic number.

It is an amenable number.

509141025 is a deficient number, since it is larger than the sum of its proper divisors (426171135).

509141025 is a wasteful number, since it uses less digits than its factorization.

509141025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754302 (or 754291 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 509141025 is about 22564.1535405164. The cubic root of 509141025 is about 798.5081703053.

The spelling of 509141025 in words is "five hundred nine million, one hundred forty-one thousand, twenty-five".