75232649 has 2 divisors, whose sum is σ = 75232650. Its totient is φ = 75232648.

The previous prime is 75232613. The next prime is 75232657. The reversal of 75232649 is 94623257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51222649 + 24010000 = 7157^2 + 4900^2 .

It is a cyclic number.

It is not a de Polignac number, because 75232649 - 2⁸ = 75232393 is a prime.

It is not a weakly prime, because it can be changed into another prime (75232249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37616324 + 37616325.

It is an arithmetic number, because the mean of its divisors is an integer number (37616325).

Almost surely, 2^75232649 is an apocalyptic number.

It is an amenable number.

75232649 is a deficient number, since it is larger than the sum of its proper divisors (1).

75232649 is an equidigital number, since it uses as much as digits as its factorization.

75232649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 75232649 is about 8673.6756337783. The cubic root of 75232649 is about 422.1519353633.

The spelling of 75232649 in words is "seventy-five million, two hundred thirty-two thousand, six hundred forty-nine".