61560535 has 16 divisors (see below), whose sum is σ = 78151104. Its totient is φ = 46455552.

The previous prime is 61560523. The next prime is 61560547. The reversal of 61560535 is 53506516.

It is an interprime number because it is at equal distance from previous prime (61560523) and next prime (61560547).

It is a cyclic number.

It is not a de Polignac number, because 61560535 - 2¹⁹ = 61036247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61560497 and 61560506.

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 15 ways as a sum of consecutive naturals, for example, 4729 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (4884444).

Almost surely, 2^61560535 is an apocalyptic number.

61560535 is a deficient number, since it is larger than the sum of its proper divisors (16590569).

61560535 is a wasteful number, since it uses less digits than its factorization.

61560535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7434.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 61560535 is about 7846.0521920263. The cubic root of 61560535 is about 394.8518057551.

The spelling of 61560535 in words is "sixty-one million, five hundred sixty thousand, five hundred thirty-five".