61495543 has 2 divisors, whose sum is σ = 61495544. Its totient is φ = 61495542.

The previous prime is 61495519. The next prime is 61495589. The reversal of 61495543 is 34559416.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61495543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61495513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30747771 + 30747772.

It is an arithmetic number, because the mean of its divisors is an integer number (30747772).

Almost surely, 2^61495543 is an apocalyptic number.

61495543 is a deficient number, since it is larger than the sum of its proper divisors (1).

61495543 is an equidigital number, since it uses as much as digits as its factorization.

61495543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 61495543 is about 7841.9093975893. The cubic root of 61495543 is about 394.7128030388.

The spelling of 61495543 in words is "sixty-one million, four hundred ninety-five thousand, five hundred forty-three".