372550921 has 2 divisors, whose sum is σ = 372550922. Its totient is φ = 372550920.

The previous prime is 372550909. The next prime is 372550951. The reversal of 372550921 is 129055273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220374025 + 152176896 = 14845^2 + 12336^2 .

It is an emirp because it is prime and its reverse (129055273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 372550921 - 2⁵ = 372550889 is a prime.

It is not a weakly prime, because it can be changed into another prime (372550951) by changing a digit.

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 as a sum of consecutive naturals, namely, 186275460 + 186275461.

It is an arithmetic number, because the mean of its divisors is an integer number (186275461).

Almost surely, 2^372550921 is an apocalyptic number.

It is an amenable number.

372550921 is a deficient number, since it is larger than the sum of its proper divisors (1).

372550921 is an equidigital number, since it uses as much as digits as its factorization.

372550921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 372550921 is about 19301.5781997224. The cubic root of 372550921 is about 719.5514960093.

The spelling of 372550921 in words is "three hundred seventy-two million, five hundred fifty thousand, nine hundred twenty-one".