525280290 has 16 divisors (see below), whose sum is σ = 1260672768. Its totient is φ = 140074736.

The previous prime is 525280253. The next prime is 525280321. The reversal of 525280290 is 92082525.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8754642 + ... + 8754701.

It is an arithmetic number, because the mean of its divisors is an integer number (78792048).

Almost surely, 2^525280290 is an apocalyptic number.

525280290 is an abundant number, since it is smaller than the sum of its proper divisors (735392478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525280290 is a wasteful number, since it uses less digits than its factorization.

525280290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17509353.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 525280290 is about 22918.9940878739. The cubic root of 525280290 is about 806.8578618884.

The spelling of 525280290 in words is "five hundred twenty-five million, two hundred eighty thousand, two hundred ninety".