61896529 has 2 divisors, whose sum is σ = 61896530. Its totient is φ = 61896528.

The previous prime is 61896431. The next prime is 61896533. The reversal of 61896529 is 92569816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52896529 + 9000000 = 7273^2 + 3000^2 .

It is a cyclic number.

It is not a de Polignac number, because 61896529 - 2⁹ = 61896017 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (61896539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30948264 + 30948265.

It is an arithmetic number, because the mean of its divisors is an integer number (30948265).

Almost surely, 2^61896529 is an apocalyptic number.

It is an amenable number.

61896529 is a deficient number, since it is larger than the sum of its proper divisors (1).

61896529 is an equidigital number, since it uses as much as digits as its factorization.

61896529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 61896529 is about 7867.4347153313. The cubic root of 61896529 is about 395.5688625636.

The spelling of 61896529 in words is "sixty-one million, eight hundred ninety-six thousand, five hundred twenty-nine".