4025351515509 has 32 divisors (see below), whose sum is σ = 6228408360960. Its totient is φ = 2564563194864.

The previous prime is 4025351515489. The next prime is 4025351515513. The reversal of 4025351515509 is 9055151535204.

4025351515509 is a `hidden beast` number, since 40 + 2 + 5 + 3 + 5 + 1 + 51 + 550 + 9 = 666.

It is not a de Polignac number, because 4025351515509 - 2⁵ = 4025351515477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025351115509) 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, 2253409 + ... + 3623334.

It is an arithmetic number, because the mean of its divisors is an integer number (194637761280).

Almost surely, 2^{4025351515509} is an apocalyptic number.

It is an amenable number.

4025351515509 is a deficient number, since it is larger than the sum of its proper divisors (2203056845451).

4025351515509 is a wasteful number, since it uses less digits than its factorization.

4025351515509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877878 (or 5877872 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 4025351515509 in words is "four trillion, twenty-five billion, three hundred fifty-one million, five hundred fifteen thousand, five hundred nine".