75051601 has 2 divisors, whose sum is σ = 75051602. Its totient is φ = 75051600.

The previous prime is 75051593. The next prime is 75051611. The reversal of 75051601 is 10615057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40653376 + 34398225 = 6376^2 + 5865^2 .

It is an emirp because it is prime and its reverse (10615057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75051601 - 2³ = 75051593 is a prime.

It is not a weakly prime, because it can be changed into another prime (75051611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37525800 + 37525801.

It is an arithmetic number, because the mean of its divisors is an integer number (37525801).

Almost surely, 2^75051601 is an apocalyptic number.

It is an amenable number.

75051601 is a deficient number, since it is larger than the sum of its proper divisors (1).

75051601 is an equidigital number, since it uses as much as digits as its factorization.

75051601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 75051601 is about 8663.2327107149. The cubic root of 75051601 is about 421.8130259654.

Adding to 75051601 its reverse (10615057), we get a palindrome (85666658).

The spelling of 75051601 in words is "seventy-five million, fifty-one thousand, six hundred one".