253210324540 has 24 divisors (see below), whose sum is σ = 531758641680. Its totient is φ = 101280899328.

The previous prime is 253210324519. The next prime is 253210324583. The reversal of 253210324540 is 45423012352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500404 + ... + 869956.

It is an arithmetic number, because the mean of its divisors is an integer number (22156610070).

Almost surely, 2^253210324540 is an apocalyptic number.

253210324540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253210324540 is an abundant number, since it is smaller than the sum of its proper divisors (278548317140).

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

253210324540 is a wasteful number, since it uses less digits than its factorization.

253210324540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403821 (or 403819 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 253210324540 its reverse (45423012352), we get a palindrome (298633336892).

The spelling of 253210324540 in words is "two hundred fifty-three billion, two hundred ten million, three hundred twenty-four thousand, five hundred forty".