61536863 has 2 divisors, whose sum is σ = 61536864. Its totient is φ = 61536862.

The previous prime is 61536841. The next prime is 61536911. The reversal of 61536863 is 36863516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61536863 - 2¹² = 61532767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61436863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30768431 + 30768432.

It is an arithmetic number, because the mean of its divisors is an integer number (30768432).

Almost surely, 2^61536863 is an apocalyptic number.

61536863 is a deficient number, since it is larger than the sum of its proper divisors (1).

61536863 is an equidigital number, since it uses as much as digits as its factorization.

61536863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 61536863 is about 7844.5435176306. The cubic root of 61536863 is about 394.8011882057.

The spelling of 61536863 in words is "sixty-one million, five hundred thirty-six thousand, eight hundred sixty-three".