68290525 has 6 divisors (see below), whose sum is σ = 84680282. Its totient is φ = 54632400.

The previous prime is 68290517. The next prime is 68290529. The reversal of 68290525 is 52509286.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8398404 + 59892121 = 2898^2 + 7739^2 .

It is not a de Polignac number, because 68290525 - 2³ = 68290517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68290529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1365786 + ... + 1365835.

Almost surely, 2^68290525 is an apocalyptic number.

It is an amenable number.

68290525 is a deficient number, since it is larger than the sum of its proper divisors (16389757).

68290525 is a wasteful number, since it uses less digits than its factorization.

68290525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731631 (or 2731626 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 68290525 is about 8263.8081415289. The cubic root of 68290525 is about 408.7459700276.

The spelling of 68290525 in words is "sixty-eight million, two hundred ninety thousand, five hundred twenty-five".