61536895 has 12 divisors (see below), whose sum is σ = 85900824. Its totient is φ = 42196560.

The previous prime is 61536863. The next prime is 61536911. The reversal of 61536895 is 59863516.

It is not a de Polignac number, because 61536895 - 2⁵ = 61536863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125341 + ... + 125830.

It is an arithmetic number, because the mean of its divisors is an integer number (7158402).

Almost surely, 2^61536895 is an apocalyptic number.

61536895 is a deficient number, since it is larger than the sum of its proper divisors (24363929).

61536895 is a wasteful number, since it uses less digits than its factorization.

61536895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251190 (or 251183 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 61536895 is about 7844.5455572646. The cubic root of 61536895 is about 394.8012566397.

The spelling of 61536895 in words is "sixty-one million, five hundred thirty-six thousand, eight hundred ninety-five".