2529431887 has 32 divisors (see below), whose sum is σ = 2820096000. Its totient is φ = 2258150400.

The previous prime is 2529431833. The next prime is 2529431899. The reversal of 2529431887 is 7881349252.

It is a cyclic number.

It is not a de Polignac number, because 2529431887 - 2²³ = 2521043279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2529431887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2529431287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9333562 + ... + 9333832.

It is an arithmetic number, because the mean of its divisors is an integer number (88128000).

Almost surely, 2^2529431887 is an apocalyptic number.

2529431887 is a deficient number, since it is larger than the sum of its proper divisors (290664113).

2529431887 is a wasteful number, since it uses less digits than its factorization.

2529431887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

The product of its digits is 967680, while the sum is 49.

The square root of 2529431887 is about 50293.4576958077. The cubic root of 2529431887 is about 1362.5140720932.

The spelling of 2529431887 in words is "two billion, five hundred twenty-nine million, four hundred thirty-one thousand, eight hundred eighty-seven".