61535536 has 20 divisors (see below), whose sum is σ = 120664152. Its totient is φ = 30396416.

The previous prime is 61535531. The next prime is 61535609. The reversal of 61535536 is 63553516.

It is not an unprimeable number, because it can be changed into a prime (61535531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21841 + ... + 24496.

Almost surely, 2^61535536 is an apocalyptic number.

It is an amenable number.

61535536 is a deficient number, since it is larger than the sum of its proper divisors (59128616).

61535536 is a wasteful number, since it uses less digits than its factorization.

61535536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46428 (or 46422 counting only the distinct ones).

The product of its digits is 40500, while the sum is 34.

The square root of 61535536 is about 7844.4589360899. The cubic root of 61535536 is about 394.7983503136.

The spelling of 61535536 in words is "sixty-one million, five hundred thirty-five thousand, five hundred thirty-six".