43250401 has 2 divisors, whose sum is σ = 43250402. Its totient is φ = 43250400.

The previous prime is 43250399. The next prime is 43250407. The reversal of 43250401 is 10405234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 5058001 = 6180^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 43250401 - 2¹ = 43250399 is a prime.

Together with 43250399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43250407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21625200 + 21625201.

It is an arithmetic number, because the mean of its divisors is an integer number (21625201).

Almost surely, 2^43250401 is an apocalyptic number.

It is an amenable number.

43250401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43250401 is an equidigital number, since it uses as much as digits as its factorization.

43250401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 43250401 is about 6576.5037063777. The cubic root of 43250401 is about 351.0185324208.

Adding to 43250401 its reverse (10405234), we get a palindrome (53655635).

The spelling of 43250401 in words is "forty-three million, two hundred fifty thousand, four hundred one".