75272999 has 2 divisors, whose sum is σ = 75273000. Its totient is φ = 75272998.

The previous prime is 75272971. The next prime is 75273019. The reversal of 75272999 is 99927257.

It is a strong prime.

It is an emirp because it is prime and its reverse (99927257) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75272999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75272969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37636499 + 37636500.

It is an arithmetic number, because the mean of its divisors is an integer number (37636500).

Almost surely, 2^75272999 is an apocalyptic number.

75272999 is a deficient number, since it is larger than the sum of its proper divisors (1).

75272999 is an equidigital number, since it uses as much as digits as its factorization.

75272999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 50.

The square root of 75272999 is about 8676.0013254955. The cubic root of 75272999 is about 422.2273936758.

The spelling of 75272999 in words is "seventy-five million, two hundred seventy-two thousand, nine hundred ninety-nine".