525722738 has 18 divisors (see below), whose sum is σ = 816403887. Its totient is φ = 253895580.

The previous prime is 525722737. The next prime is 525722767. The reversal of 525722738 is 837227525.

It can be written as a sum of positive squares in only one way, i.e., 262861369 + 262861369 = 16213^2 + 16213^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16213.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 525722695 and 525722704.

It is not an unprimeable number, because it can be changed into a prime (525722731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1004945 + ... + 1005467.

Almost surely, 2^525722738 is an apocalyptic number.

525722738 is a deficient number, since it is larger than the sum of its proper divisors (290681149).

525722738 is an frugal number, since it uses more digits than its factorization.

525722738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 556 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 525722738 is about 22928.6444867550. The cubic root of 525722738 is about 807.0843393635.

The spelling of 525722738 in words is "five hundred twenty-five million, seven hundred twenty-two thousand, seven hundred thirty-eight".