525683790 has 128 divisors (see below), whose sum is σ = 1456755840. Its totient is φ = 134784000.

The previous prime is 525683779. The next prime is 525683801. The reversal of 525683790 is 97386525.

It is a happy number.

525683790 is a `hidden beast` number, since 52 + 568 + 37 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (525683779) and next prime (525683801).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1008730 + ... + 1009250.

It is an arithmetic number, because the mean of its divisors is an integer number (11380905).

Almost surely, 2^525683790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525683790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728377920).

525683790 is an abundant number, since it is smaller than the sum of its proper divisors (931072050).

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

525683790 is a wasteful number, since it uses less digits than its factorization.

525683790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 525683790 is about 22927.7951403967. The cubic root of 525683790 is about 807.0644080101.

The spelling of 525683790 in words is "five hundred twenty-five million, six hundred eighty-three thousand, seven hundred ninety".