39503698225 has 24 divisors (see below), whose sum is σ = 49495974912. Its totient is φ = 31273368000.

The previous prime is 39503698217. The next prime is 39503698229. The reversal of 39503698225 is 52289630593.

It is a happy number.

It is not a de Polignac number, because 39503698225 - 2³ = 39503698217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39503698229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7175824 + ... + 7181326.

It is an arithmetic number, because the mean of its divisors is an integer number (2062332288).

Almost surely, 2^39503698225 is an apocalyptic number.

It is an amenable number.

39503698225 is a deficient number, since it is larger than the sum of its proper divisors (9992276687).

39503698225 is a wasteful number, since it uses less digits than its factorization.

39503698225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8457 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 39503698225 in words is "thirty-nine billion, five hundred three million, six hundred ninety-eight thousand, two hundred twenty-five".