1617085525 has 24 divisors (see below), whose sum is σ = 2234035584. Its totient is φ = 1151030400.

The previous prime is 1617085517. The next prime is 1617085537. The reversal of 1617085525 is 5255807161.

It is a happy number.

It is not a de Polignac number, because 1617085525 - 2³ = 1617085517 is a prime.

It is a super-2 number, since 2×1617085525² = 5229931190329051250, which contains 22 as substring.

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, 49632 + ... + 75481.

It is an arithmetic number, because the mean of its divisors is an integer number (93084816).

Almost surely, 2^1617085525 is an apocalyptic number.

It is an amenable number.

1617085525 is a deficient number, since it is larger than the sum of its proper divisors (616950059).

1617085525 is a wasteful number, since it uses less digits than its factorization.

1617085525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125181 (or 125176 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 40.

The square root of 1617085525 is about 40213.0019396712. The cubic root of 1617085525 is about 1173.7555619182.

The spelling of 1617085525 in words is "one billion, six hundred seventeen million, eighty-five thousand, five hundred twenty-five".