525343737636 has 135 divisors (see below), whose sum is σ = 1396479621537. Its totient is φ = 172213905600.

The previous prime is 525343737593. The next prime is 525343737641. The reversal of 525343737636 is 636737343525.

The square root of 525343737636 is 724806.

It is a perfect power (a square), and thus also a powerful number.

525343737636 is a `hidden beast` number, since 5 + 2 + 534 + 3 + 7 + 3 + 76 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 441568224036 + 83775513600 = 664506^2 + 289440^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 874115736 + ... + 874116336.

Almost surely, 2^525343737636 is an apocalyptic number.

525343737636 is the 724806-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525343737636

525343737636 is an abundant number, since it is smaller than the sum of its proper divisors (871135883901).

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

525343737636 is an frugal number, since it uses more digits than its factorization.

525343737636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 673 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 54.

The spelling of 525343737636 in words is "five hundred twenty-five billion, three hundred forty-three million, seven hundred thirty-seven thousand, six hundred thirty-six".