2135641525 has 12 divisors (see below), whose sum is σ = 2669051392. Its totient is φ = 1695057840.

The previous prime is 2135641513. The next prime is 2135641583. The reversal of 2135641525 is 5251465312.

It is not a de Polignac number, because 2135641525 - 2¹¹ = 2135639477 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, 333147 + ... + 339496.

Almost surely, 2^2135641525 is an apocalyptic number.

2135641525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2135641525 is a deficient number, since it is larger than the sum of its proper divisors (533409867).

2135641525 is a wasteful number, since it uses less digits than its factorization.

2135641525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672780 (or 672775 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 2135641525 is about 46213.0016878367. The cubic root of 2135641525 is about 1287.7832901622.

The spelling of 2135641525 in words is "two billion, one hundred thirty-five million, six hundred forty-one thousand, five hundred twenty-five".