43472501 has 2 divisors, whose sum is σ = 43472502. Its totient is φ = 43472500.

The previous prime is 43472497. The next prime is 43472503. The reversal of 43472501 is 10527434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43217476 + 255025 = 6574^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 43472501 - 2² = 43472497 is a prime.

Together with 43472503, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43472503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21736250 + 21736251.

It is an arithmetic number, because the mean of its divisors is an integer number (21736251).

Almost surely, 2^43472501 is an apocalyptic number.

It is an amenable number.

43472501 is a deficient number, since it is larger than the sum of its proper divisors (1).

43472501 is an equidigital number, since it uses as much as digits as its factorization.

43472501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 43472501 is about 6593.3679557568. The cubic root of 43472501 is about 351.6183584304.

Adding to 43472501 its reverse (10527434), we get a palindrome (53999935).

The spelling of 43472501 in words is "forty-three million, four hundred seventy-two thousand, five hundred one".