63725052737 has 4 divisors (see below), whose sum is σ = 63727344576. Its totient is φ = 63722760900.

The previous prime is 63725052733. The next prime is 63725052757. The reversal of 63725052737 is 73725052736.

63725052737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63725052737 - 2² = 63725052733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63725052691 and 63725052700.

It is not an unprimeable number, because it can be changed into a prime (63725052731) 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, 1103693 + ... + 1159994.

It is an arithmetic number, because the mean of its divisors is an integer number (15931836144).

Almost surely, 2^63725052737 is an apocalyptic number.

It is an amenable number.

63725052737 is a deficient number, since it is larger than the sum of its proper divisors (2291839).

63725052737 is a wasteful number, since it uses less digits than its factorization.

63725052737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291838.

The product of its (nonzero) digits is 1852200, while the sum is 47.

Subtracting 63725052737 from its reverse (73725052736), we obtain a palindrome (9999999999).

The spelling of 63725052737 in words is "sixty-three billion, seven hundred twenty-five million, fifty-two thousand, seven hundred thirty-seven".