53996829657 has 16 divisors (see below), whose sum is σ = 75907901760. Its totient is φ = 34047965952.

The previous prime is 53996829611. The next prime is 53996829673. The reversal of 53996829657 is 75692869935.

It is not a de Polignac number, because 53996829657 - 2⁷ = 53996829529 is a prime.

It is a super-2 number, since 2×53996829657² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53996829591 and 53996829600.

It is not an unprimeable number, because it can be changed into a prime (53996829857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732508 + ... + 802845.

It is an arithmetic number, because the mean of its divisors is an integer number (4744243860).

Almost surely, 2^53996829657 is an apocalyptic number.

53996829657 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

53996829657 is a deficient number, since it is larger than the sum of its proper divisors (21911072103).

53996829657 is a wasteful number, since it uses less digits than its factorization.

53996829657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535992.

The product of its digits is 220449600, while the sum is 69.

The spelling of 53996829657 in words is "fifty-three billion, nine hundred ninety-six million, eight hundred twenty-nine thousand, six hundred fifty-seven".