525005525 has 12 divisors (see below), whose sum is σ = 710189664. Its totient is φ = 381822000.

The previous prime is 525005519. The next prime is 525005539. The reversal of 525005525 is 525500525.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-525005525 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 954281 + ... + 954830.

It is an arithmetic number, because the mean of its divisors is an integer number (59182472).

Almost surely, 2^525005525 is an apocalyptic number.

525005525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525005525 is a deficient number, since it is larger than the sum of its proper divisors (185184139).

525005525 is a wasteful number, since it uses less digits than its factorization.

525005525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909132 (or 1909127 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 525005525 is about 22912.9990398464. Note that the first 3 decimals coincide. The cubic root of 525005525 is about 806.7171529050.

The spelling of 525005525 in words is "five hundred twenty-five million, five thousand, five hundred twenty-five".