52501221250 has 40 divisors (see below), whose sum is σ = 98729558928. Its totient is φ = 20931930000.

The previous prime is 52501221247. The next prime is 52501221277. The reversal of 52501221250 is 5212210525.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 315345 + ... + 452155.

Almost surely, 2^52501221250 is an apocalyptic number.

52501221250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52501221250 is a deficient number, since it is larger than the sum of its proper divisors (46228337678).

52501221250 is a wasteful number, since it uses less digits than its factorization.

52501221250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137140 (or 137125 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 52501221250 its reverse (5212210525), we get a palindrome (57713431775).

The spelling of 52501221250 in words is "fifty-two billion, five hundred one million, two hundred twenty-one thousand, two hundred fifty".