61755285 has 16 divisors (see below), whose sum is σ = 99475200. Its totient is φ = 32713920.

The previous prime is 61755283. The next prime is 61755289. The reversal of 61755285 is 58255716.

It is not a de Polignac number, because 61755285 - 2¹ = 61755283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61755283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11581 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (6217200).

Almost surely, 2^61755285 is an apocalyptic number.

It is an amenable number.

61755285 is a deficient number, since it is larger than the sum of its proper divisors (37719915).

61755285 is a wasteful number, since it uses less digits than its factorization.

61755285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27788.

The product of its digits is 84000, while the sum is 39.

The square root of 61755285 is about 7858.4530920532. The cubic root of 61755285 is about 395.2677456195.

The spelling of 61755285 in words is "sixty-one million, seven hundred fifty-five thousand, two hundred eighty-five".