71525393 has 2 divisors, whose sum is σ = 71525394. Its totient is φ = 71525392.

The previous prime is 71525359. The next prime is 71525417. The reversal of 71525393 is 39352517.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71031184 + 494209 = 8428^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 71525393 - 2¹² = 71521297 is a prime.

It is not a weakly prime, because it can be changed into another prime (71525303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35762696 + 35762697.

It is an arithmetic number, because the mean of its divisors is an integer number (35762697).

Almost surely, 2^71525393 is an apocalyptic number.

It is an amenable number.

71525393 is a deficient number, since it is larger than the sum of its proper divisors (1).

71525393 is an equidigital number, since it uses as much as digits as its factorization.

71525393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28350, while the sum is 35.

The square root of 71525393 is about 8457.2686489197. The cubic root of 71525393 is about 415.1006539616.

The spelling of 71525393 in words is "seventy-one million, five hundred twenty-five thousand, three hundred ninety-three".