631006432253 has 4 divisors (see below), whose sum is σ = 631028095680. Its totient is φ = 630984768828.

The previous prime is 631006432219. The next prime is 631006432421. The reversal of 631006432253 is 352234600136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631006432253 - 2⁸ = 631006431997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631006432453) 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 3 ways as a sum of consecutive naturals, for example, 10787963 + ... + 10846296.

It is an arithmetic number, because the mean of its divisors is an integer number (157757023920).

Almost surely, 2^631006432253 is an apocalyptic number.

It is an amenable number.

631006432253 is a deficient number, since it is larger than the sum of its proper divisors (21663427).

631006432253 is a wasteful number, since it uses less digits than its factorization.

631006432253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21663426.

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 631006432253 in words is "six hundred thirty-one billion, six million, four hundred thirty-two thousand, two hundred fifty-three".