4247172500 has 30 divisors (see below), whose sum is σ = 9287722290. Its totient is φ = 1698868000.

The previous prime is 4247172487. The next prime is 4247172521. The reversal of 4247172500 is 52717424.

It can be written as a sum of positive squares in 5 ways, for example, as 3200391184 + 1046781316 = 56572^2 + 32354^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 846935 + ... + 851934.

It is an arithmetic number, because the mean of its divisors is an integer number (309590743).

Almost surely, 2^4247172500 is an apocalyptic number.

It is an amenable number.

4247172500 is an abundant number, since it is smaller than the sum of its proper divisors (5040549790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4247172500 is a wasteful number, since it uses less digits than its factorization.

4247172500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698893 (or 1698876 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 4247172500 is about 65170.3345088853. The cubic root of 4247172500 is about 1619.4466051688.

Adding to 4247172500 its reverse (52717424), we get a palindrome (4299889924).

The spelling of 4247172500 in words is "four billion, two hundred forty-seven million, one hundred seventy-two thousand, five hundred".