401825089 has 2 divisors, whose sum is σ = 401825090. Its totient is φ = 401825088.

The previous prime is 401825087. The next prime is 401825093. The reversal of 401825089 is 980528104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401000625 + 824464 = 20025^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 401825089 - 2¹ = 401825087 is a prime.

It is a super-2 number, since 2×401825089² = 322926804299715842, which contains 22 as substring.

Together with 401825087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (401825087) 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 as a sum of consecutive naturals, namely, 200912544 + 200912545.

It is an arithmetic number, because the mean of its divisors is an integer number (200912545).

Almost surely, 2^401825089 is an apocalyptic number.

It is an amenable number.

401825089 is a deficient number, since it is larger than the sum of its proper divisors (1).

401825089 is an equidigital number, since it uses as much as digits as its factorization.

401825089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 401825089 is about 20045.5752973069. The cubic root of 401825089 is about 737.9252139120.

The spelling of 401825089 in words is "four hundred one million, eight hundred twenty-five thousand, eighty-nine".