2520785135 has 24 divisors (see below), whose sum is σ = 3331215888. Its totient is φ = 1829836800.

The previous prime is 2520785117. The next prime is 2520785161. The reversal of 2520785135 is 5315870252.

It is not a de Polignac number, because 2520785135 - 2⁸ = 2520784879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341807 + ... + 349103.

It is an arithmetic number, because the mean of its divisors is an integer number (138800662).

Almost surely, 2^2520785135 is an apocalyptic number.

2520785135 is a deficient number, since it is larger than the sum of its proper divisors (810430753).

2520785135 is a wasteful number, since it uses less digits than its factorization.

2520785135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 2520785135 is about 50207.4211148113. The cubic root of 2520785135 is about 1360.9597347293.

The spelling of 2520785135 in words is "two billion, five hundred twenty million, seven hundred eighty-five thousand, one hundred thirty-five".