71422553 has 2 divisors, whose sum is σ = 71422554. Its totient is φ = 71422552.

The previous prime is 71422541. The next prime is 71422583. The reversal of 71422553 is 35522417.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61512649 + 9909904 = 7843^2 + 3148^2 .

It is a cyclic number.

It is not a de Polignac number, because 71422553 - 2⁴ = 71422537 is a prime.

It is not a weakly prime, because it can be changed into another prime (71422583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35711276 + 35711277.

It is an arithmetic number, because the mean of its divisors is an integer number (35711277).

Almost surely, 2^71422553 is an apocalyptic number.

It is an amenable number.

71422553 is a deficient number, since it is larger than the sum of its proper divisors (1).

71422553 is an equidigital number, since it uses as much as digits as its factorization.

71422553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 71422553 is about 8451.1864847488. The cubic root of 71422553 is about 414.9016131018.

The spelling of 71422553 in words is "seventy-one million, four hundred twenty-two thousand, five hundred fifty-three".