71425493 has 2 divisors, whose sum is σ = 71425494. Its totient is φ = 71425492.

The previous prime is 71425469. The next prime is 71425499. The reversal of 71425493 is 39452417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68525284 + 2900209 = 8278^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 71425493 - 2²⁴ = 54648277 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 (71425499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35712746 + 35712747.

It is an arithmetic number, because the mean of its divisors is an integer number (35712747).

Almost surely, 2^71425493 is an apocalyptic number.

It is an amenable number.

71425493 is a deficient number, since it is larger than the sum of its proper divisors (1).

71425493 is an equidigital number, since it uses as much as digits as its factorization.

71425493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 71425493 is about 8451.3604230325. The cubic root of 71425493 is about 414.9073059535.

The spelling of 71425493 in words is "seventy-one million, four hundred twenty-five thousand, four hundred ninety-three".