68172575 has 24 divisors (see below), whose sum is σ = 89913888. Its totient is φ = 51159680.

The previous prime is 68172571. The next prime is 68172581. The reversal of 68172575 is 57527186.

It is not a de Polignac number, because 68172575 - 2² = 68172571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68172571) 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, 29357 + ... + 31593.

It is an arithmetic number, because the mean of its divisors is an integer number (3746412).

Almost surely, 2^68172575 is an apocalyptic number.

68172575 is a deficient number, since it is larger than the sum of its proper divisors (21741313).

68172575 is a wasteful number, since it uses less digits than its factorization.

68172575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2318 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 68172575 is about 8256.6685170231. The cubic root of 68172575 is about 408.5105085171.

The spelling of 68172575 in words is "sixty-eight million, one hundred seventy-two thousand, five hundred seventy-five".