372505506 has 16 divisors (see below), whose sum is σ = 748105248. Its totient is φ = 123652800.

The previous prime is 372505501. The next prime is 372505531. The reversal of 372505506 is 605505273.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (372505501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127360 + ... + 130251.

It is an arithmetic number, because the mean of its divisors is an integer number (46756578).

Almost surely, 2^372505506 is an apocalyptic number.

372505506 is an abundant number, since it is smaller than the sum of its proper divisors (375599742).

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

372505506 is a wasteful number, since it uses less digits than its factorization.

372505506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257857.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 372505506 is about 19300.4017056641. The cubic root of 372505506 is about 719.5222563740.

The spelling of 372505506 in words is "three hundred seventy-two million, five hundred five thousand, five hundred six".