253210256530 has 64 divisors (see below), whose sum is σ = 578964941568. Its totient is φ = 77433557760.

The previous prime is 253210256503. The next prime is 253210256599. The reversal of 253210256530 is 35652012352.

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, 3061497 + ... + 3143116.

It is an arithmetic number, because the mean of its divisors is an integer number (9046327212).

Almost surely, 2^253210256530 is an apocalyptic number.

253210256530 is an abundant number, since it is smaller than the sum of its proper divisors (325754685038).

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

253210256530 is a wasteful number, since it uses less digits than its factorization.

253210256530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204691.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 253210256530 its reverse (35652012352), we get a palindrome (288862268882).

The spelling of 253210256530 in words is "two hundred fifty-three billion, two hundred ten million, two hundred fifty-six thousand, five hundred thirty".