63172475 has 12 divisors (see below), whose sum is σ = 79097616. Its totient is φ = 50045280.

The previous prime is 63172471. The next prime is 63172489. The reversal of 63172475 is 57427136.

It is not a de Polignac number, because 63172475 - 2² = 63172471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63172471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9692 + ... + 14841.

It is an arithmetic number, because the mean of its divisors is an integer number (6591468).

Almost surely, 2^63172475 is an apocalyptic number.

63172475 is a deficient number, since it is larger than the sum of its proper divisors (15925141).

63172475 is a wasteful number, since it uses less digits than its factorization.

63172475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24646 (or 24641 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 63172475 is about 7948.1114108950. Note that the first 3 decimals coincide. The cubic root of 63172475 is about 398.2685052127.

The spelling of 63172475 in words is "sixty-three million, one hundred seventy-two thousand, four hundred seventy-five".