526425642 has 80 divisors (see below), whose sum is σ = 1204216200. Its totient is φ = 171859968.

The previous prime is 526425629. The next prime is 526425643. The reversal of 526425642 is 246524625.

526425642 is a `hidden beast` number, since 5 + 2 + 6 + 4 + 2 + 5 + 642 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 120362841 + 406062801 = 10971^2 + 20151^2 .

It is a super-2 number, since 2×526425642² = 554247913110224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 526425597 and 526425606.

It is not an unprimeable number, because it can be changed into a prime (526425643) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2727498 + ... + 2727690.

Almost surely, 2^526425642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 526425642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602108100).

526425642 is an abundant number, since it is smaller than the sum of its proper divisors (677790558).

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

526425642 is a wasteful number, since it uses less digits than its factorization.

526425642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 460 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 526425642 is about 22943.9674424455. The cubic root of 526425642 is about 807.4438762605.

The spelling of 526425642 in words is "five hundred twenty-six million, four hundred twenty-five thousand, six hundred forty-two".