43488551 has 2 divisors, whose sum is σ = 43488552. Its totient is φ = 43488550.

The previous prime is 43488539. The next prime is 43488553. The reversal of 43488551 is 15588434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43488551 - 2¹⁴ = 43472167 is a prime.

Together with 43488553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43488553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21744275 + 21744276.

It is an arithmetic number, because the mean of its divisors is an integer number (21744276).

Almost surely, 2^43488551 is an apocalyptic number.

43488551 is a deficient number, since it is larger than the sum of its proper divisors (1).

43488551 is an equidigital number, since it uses as much as digits as its factorization.

43488551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 38.

The square root of 43488551 is about 6594.5849755690. The cubic root of 43488551 is about 351.6616254777.

The spelling of 43488551 in words is "forty-three million, four hundred eighty-eight thousand, five hundred fifty-one".