172825765 has 8 divisors (see below), whose sum is σ = 237018240. Its totient is φ = 118509072.

The previous prime is 172825759. The next prime is 172825771. The reversal of 172825765 is 567528271.

It is an interprime number because it is at equal distance from previous prime (172825759) and next prime (172825771).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172825765 - 2⁵ = 172825733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2468905 + ... + 2468974.

It is an arithmetic number, because the mean of its divisors is an integer number (29627280).

Almost surely, 2^172825765 is an apocalyptic number.

It is an amenable number.

172825765 is a deficient number, since it is larger than the sum of its proper divisors (64192475).

172825765 is an equidigital number, since it uses as much as digits as its factorization.

172825765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937891.

The product of its digits is 235200, while the sum is 43.

The square root of 172825765 is about 13146.3213485750. The cubic root of 172825765 is about 557.0183416523.

The spelling of 172825765 in words is "one hundred seventy-two million, eight hundred twenty-five thousand, seven hundred sixty-five".