253211016501 has 24 divisors (see below), whose sum is σ = 371828433600. Its totient is φ = 166009985856.

The previous prime is 253211016463. The next prime is 253211016511. The reversal of 253211016501 is 105610112352.

253211016501 is a `hidden beast` number, since 2 + 5 + 3 + 2 + 1 + 1 + 0 + 1 + 650 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-253211016501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253211016511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10681 + ... + 711713.

It is an arithmetic number, because the mean of its divisors is an integer number (15492851400).

Almost surely, 2^253211016501 is an apocalyptic number.

It is an amenable number.

253211016501 is a deficient number, since it is larger than the sum of its proper divisors (118617417099).

253211016501 is a wasteful number, since it uses less digits than its factorization.

253211016501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701705 (or 701702 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 253211016501 its reverse (105610112352), we get a palindrome (358821128853).

The spelling of 253211016501 in words is "two hundred fifty-three billion, two hundred eleven million, sixteen thousand, five hundred one".