2639002525 has 12 divisors (see below), whose sum is σ = 3302949312. Its totient is φ = 2091469040.

The previous prime is 2639002517. The next prime is 2639002537. The reversal of 2639002525 is 5252009362.

It is a happy number.

It is not a de Polignac number, because 2639002525 - 2³ = 2639002517 is a prime.

It is a Duffinian number.

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, 490597 + ... + 495946.

It is an arithmetic number, because the mean of its divisors is an integer number (275245776).

Almost surely, 2^2639002525 is an apocalyptic number.

2639002525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2639002525 is a deficient number, since it is larger than the sum of its proper divisors (663946787).

2639002525 is a wasteful number, since it uses less digits than its factorization.

2639002525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986660 (or 986655 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2639002525 is about 51371.2227321873. Note that the first 3 decimals coincide. The cubic root of 2639002525 is about 1381.9105590648.

The spelling of 2639002525 in words is "two billion, six hundred thirty-nine million, two thousand, five hundred twenty-five".