61061535 has 48 divisors (see below), whose sum is σ = 117992160. Its totient is φ = 29030400.

The previous prime is 61061513. The next prime is 61061551. The reversal of 61061535 is 53516016.

It is a happy number.

61061535 is a `hidden beast` number, since 6 + 10 + 615 + 35 = 666.

It is not a de Polignac number, because 61061535 - 2⁵ = 61061503 is a prime.

It is a super-3 number, since 3×61061535³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 61061499 and 61061508.

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 47 ways as a sum of consecutive naturals, for example, 12435 + ... + 16635.

It is an arithmetic number, because the mean of its divisors is an integer number (2458170).

Almost surely, 2^61061535 is an apocalyptic number.

61061535 is a deficient number, since it is larger than the sum of its proper divisors (56930625).

61061535 is a wasteful number, since it uses less digits than its factorization.

61061535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 61061535 is about 7814.1880576295. The cubic root of 61061535 is about 393.7820412323.

The spelling of 61061535 in words is "sixty-one million, sixty-one thousand, five hundred thirty-five".