61756065 has 24 divisors (see below), whose sum is σ = 122336448. Its totient is φ = 28231200.

The previous prime is 61756063. The next prime is 61756091. The reversal of 61756065 is 56065716.

It is a happy number.

61756065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61756065 - 2¹ = 61756063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61756063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97711 + ... + 98340.

It is an arithmetic number, because the mean of its divisors is an integer number (5097352).

Almost surely, 2^61756065 is an apocalyptic number.

It is an amenable number.

61756065 is a deficient number, since it is larger than the sum of its proper divisors (60580383).

61756065 is a wasteful number, since it uses less digits than its factorization.

61756065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196069 (or 196066 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 61756065 is about 7858.5027199843. The cubic root of 61756065 is about 395.2694097553.

The spelling of 61756065 in words is "sixty-one million, seven hundred fifty-six thousand, sixty-five".