75209801 has 2 divisors, whose sum is σ = 75209802. Its totient is φ = 75209800.

The previous prime is 75209791. The next prime is 75209833. The reversal of 75209801 is 10890257.

It is an a-pointer prime, because the next prime (75209833) can be obtained adding 75209801 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71842576 + 3367225 = 8476^2 + 1835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75209801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75206801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37604900 + 37604901.

It is an arithmetic number, because the mean of its divisors is an integer number (37604901).

Almost surely, 2^75209801 is an apocalyptic number.

It is an amenable number.

75209801 is a deficient number, since it is larger than the sum of its proper divisors (1).

75209801 is an equidigital number, since it uses as much as digits as its factorization.

75209801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 75209801 is about 8672.3584450829. The cubic root of 75209801 is about 422.1091954796.

The spelling of 75209801 in words is "seventy-five million, two hundred nine thousand, eight hundred one".