61606523 has 8 divisors (see below), whose sum is σ = 68309616. Its totient is φ = 55087200.

The previous prime is 61606507. The next prime is 61606529. The reversal of 61606523 is 32560616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61606523 - 2⁴ = 61606507 is a prime.

It is a super-3 number, since 3×61606523³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61606529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45236 + ... + 46577.

It is an arithmetic number, because the mean of its divisors is an integer number (8538702).

Almost surely, 2^61606523 is an apocalyptic number.

61606523 is a deficient number, since it is larger than the sum of its proper divisors (6703093).

61606523 is a wasteful number, since it uses less digits than its factorization.

61606523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91885.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 61606523 is about 7848.9822907177. The cubic root of 61606523 is about 394.9501042567.

The spelling of 61606523 in words is "sixty-one million, six hundred six thousand, five hundred twenty-three".