253725532440540 has 96 divisors (see below), whose sum is σ = 711335740437504. Its totient is φ = 67574029628160.

The previous prime is 253725532440517. The next prime is 253725532440563. The reversal of 253725532440540 is 45044235527352.

It is an interprime number because it is at equal distance from previous prime (253725532440517) and next prime (253725532440563).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1426962922 + ... + 1427140718.

It is an arithmetic number, because the mean of its divisors is an integer number (7409747296224).

Almost surely, 2^{253725532440540} is an apocalyptic number.

253725532440540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253725532440540 is an abundant number, since it is smaller than the sum of its proper divisors (457610207996964).

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

253725532440540 is a wasteful number, since it uses less digits than its factorization.

253725532440540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207947 (or 207945 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 51.

Adding to 253725532440540 its reverse (45044235527352), we get a palindrome (298769767967892).

The spelling of 253725532440540 in words is "two hundred fifty-three trillion, seven hundred twenty-five billion, five hundred thirty-two million, four hundred forty thousand, five hundred forty".