53263660446431 has 4 divisors (see below), whose sum is σ = 53683059347712. Its totient is φ = 52844261545152.

The previous prime is 53263660446427. The next prime is 53263660446439. The reversal of 53263660446431 is 13464406636235.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53263660446431 - 2² = 53263660446427 is a prime.

It is a super-2 number, since 2×53263660446431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53263660446439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209699450450 + ... + 209699450703.

It is an arithmetic number, because the mean of its divisors is an integer number (13420764836928).

Almost surely, 2^{53263660446431} is an apocalyptic number.

53263660446431 is a deficient number, since it is larger than the sum of its proper divisors (419398901281).

53263660446431 is a wasteful number, since it uses less digits than its factorization.

53263660446431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419398901280.

The product of its (nonzero) digits is 22394880, while the sum is 53.

The spelling of 53263660446431 in words is "fifty-three trillion, two hundred sixty-three billion, six hundred sixty million, four hundred forty-six thousand, four hundred thirty-one".