525426250 has 20 divisors (see below), whose sum is σ = 984861306. Its totient is φ = 210170000.

The previous prime is 525426229. The next prime is 525426257. The reversal of 525426250 is 52624525.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 86062729 + 439363521 = 9277^2 + 20961^2 .

It is not an unprimeable number, because it can be changed into a prime (525426257) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 208921 + ... + 211420.

Almost surely, 2^525426250 is an apocalyptic number.

525426250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

525426250 is a deficient number, since it is larger than the sum of its proper divisors (459435056).

525426250 is an equidigital number, since it uses as much as digits as its factorization.

525426250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420363 (or 420348 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 525426250 is about 22922.1781251259. The cubic root of 525426250 is about 806.9325890193.

The spelling of 525426250 in words is "five hundred twenty-five million, four hundred twenty-six thousand, two hundred fifty".