61536508 has 12 divisors (see below), whose sum is σ = 117478872. Its totient is φ = 27971120.

The previous prime is 61536493. The next prime is 61536511. The reversal of 61536508 is 80563516.

It is a super-4 number, since 4×61536508⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699235 + ... + 699322.

It is an arithmetic number, because the mean of its divisors is an integer number (9789906).

Almost surely, 2^61536508 is an apocalyptic number.

It is an amenable number.

61536508 is a deficient number, since it is larger than the sum of its proper divisors (55942364).

61536508 is a wasteful number, since it uses less digits than its factorization.

61536508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398572 (or 1398570 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 61536508 is about 7844.5208904050. The cubic root of 61536508 is about 394.8004290148.

The spelling of 61536508 in words is "sixty-one million, five hundred thirty-six thousand, five hundred eight".