253732523540 has 12 divisors (see below), whose sum is σ = 532838299476. Its totient is φ = 101493009408.

The previous prime is 253732523519. The next prime is 253732523543. The reversal of 253732523540 is 45325237352.

It can be written as a sum of positive squares in 2 ways, for example, as 62941777924 + 190790745616 = 250882^2 + 436796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253732523543) 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 3 ways as a sum of consecutive naturals, for example, 6343313069 + ... + 6343313108.

It is an arithmetic number, because the mean of its divisors is an integer number (44403191623).

Almost surely, 2^253732523540 is an apocalyptic number.

253732523540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253732523540 is an abundant number, since it is smaller than the sum of its proper divisors (279105775936).

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

253732523540 is a wasteful number, since it uses less digits than its factorization.

253732523540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12686626186 (or 12686626184 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 41.

The spelling of 253732523540 in words is "two hundred fifty-three billion, seven hundred thirty-two million, five hundred twenty-three thousand, five hundred forty".