73402501 has 2 divisors, whose sum is σ = 73402502. Its totient is φ = 73402500.

The previous prime is 73402471. The next prime is 73402517. The reversal of 73402501 is 10520437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72760900 + 641601 = 8530^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 73402501 - 2¹⁹ = 72878213 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 (73402801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36701250 + 36701251.

It is an arithmetic number, because the mean of its divisors is an integer number (36701251).

Almost surely, 2^73402501 is an apocalyptic number.

It is an amenable number.

73402501 is a deficient number, since it is larger than the sum of its proper divisors (1).

73402501 is an equidigital number, since it uses as much as digits as its factorization.

73402501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 73402501 is about 8567.5259556070. The cubic root of 73402501 is about 418.7006346797.

Adding to 73402501 its reverse (10520437), we get a palindrome (83922938).

The spelling of 73402501 in words is "seventy-three million, four hundred two thousand, five hundred one".