53021423696 has 20 divisors (see below), whose sum is σ = 105234595284. Its totient is φ = 25864108800.

The previous prime is 53021423681. The next prime is 53021423699. The reversal of 53021423696 is 69632412035.

It can be written as a sum of positive squares in 2 ways, for example, as 16011359296 + 37010064400 = 126536^2 + 192380^2 .

It is a super-2 number, since 2×53021423696² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021423699) 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, 40412015 + ... + 40413326.

Almost surely, 2^53021423696 is an apocalyptic number.

It is an amenable number.

53021423696 is a deficient number, since it is larger than the sum of its proper divisors (52213171588).

53021423696 is a wasteful number, since it uses less digits than its factorization.

53021423696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80825390 (or 80825384 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 53021423696 in words is "fifty-three billion, twenty-one million, four hundred twenty-three thousand, six hundred ninety-six".