83520525 has 48 divisors (see below), whose sum is σ = 152990208. Its totient is φ = 39864000.

The previous prime is 83520517. The next prime is 83520533. The reversal of 83520525 is 52502538.

It is an interprime number because it is at equal distance from previous prime (83520517) and next prime (83520533).

It is not a de Polignac number, because 83520525 - 2³ = 83520517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83520492 and 83520501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54520 + ... + 56030.

It is an arithmetic number, because the mean of its divisors is an integer number (3187296).

Almost surely, 2^83520525 is an apocalyptic number.

It is an amenable number.

83520525 is a deficient number, since it is larger than the sum of its proper divisors (69469683).

83520525 is a wasteful number, since it uses less digits than its factorization.

83520525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 83520525 is about 9138.9564502737. The cubic root of 83520525 is about 437.1170417525.

The spelling of 83520525 in words is "eighty-three million, five hundred twenty thousand, five hundred twenty-five".