8725278525 has 24 divisors (see below), whose sum is σ = 14574525504. Its totient is φ = 4605504000.

The previous prime is 8725278491. The next prime is 8725278547. The reversal of 8725278525 is 5258725278.

It is a happy number.

It is not a de Polignac number, because 8725278525 - 2⁶ = 8725278461 is a prime.

It is a super-2 number, since 2×8725278525² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 592401 + ... + 606950.

It is an arithmetic number, because the mean of its divisors is an integer number (607271896).

Almost surely, 2^8725278525 is an apocalyptic number.

It is an amenable number.

8725278525 is a deficient number, since it is larger than the sum of its proper divisors (5849246979).

8725278525 is a wasteful number, since it uses less digits than its factorization.

8725278525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199461 (or 1199456 counting only the distinct ones).

The product of its digits is 3136000, while the sum is 51.

The square root of 8725278525 is about 93409.1993595920. The cubic root of 8725278525 is about 2058.7001669714.

The spelling of 8725278525 in words is "eight billion, seven hundred twenty-five million, two hundred seventy-eight thousand, five hundred twenty-five".