61965499 has 2 divisors, whose sum is σ = 61965500. Its totient is φ = 61965498.

The previous prime is 61965487. The next prime is 61965503. The reversal of 61965499 is 99456916.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61965499 is a prime.

It is not a weakly prime, because it can be changed into another prime (61965439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30982749 + 30982750.

It is an arithmetic number, because the mean of its divisors is an integer number (30982750).

Almost surely, 2^61965499 is an apocalyptic number.

61965499 is a deficient number, since it is larger than the sum of its proper divisors (1).

61965499 is an equidigital number, since it uses as much as digits as its factorization.

61965499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The square root of 61965499 is about 7871.8167534566. The cubic root of 61965499 is about 395.7157327126.

The spelling of 61965499 in words is "sixty-one million, nine hundred sixty-five thousand, four hundred ninety-nine".