61411759 has 4 divisors (see below), whose sum is σ = 61562320. Its totient is φ = 61261200.

The previous prime is 61411733. The next prime is 61411807. The reversal of 61411759 is 95711416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61411759 - 2⁷ = 61411631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61415759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74667 + ... + 75484.

It is an arithmetic number, because the mean of its divisors is an integer number (15390580).

Almost surely, 2^61411759 is an apocalyptic number.

61411759 is a deficient number, since it is larger than the sum of its proper divisors (150561).

61411759 is a wasteful number, since it uses less digits than its factorization.

61411759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150560.

The product of its digits is 7560, while the sum is 34.

The square root of 61411759 is about 7836.5655104772. The cubic root of 61411759 is about 394.5334640376.

The spelling of 61411759 in words is "sixty-one million, four hundred eleven thousand, seven hundred fifty-nine".