61440611 has 4 divisors (see below), whose sum is σ = 61534224. Its totient is φ = 61347000.

The previous prime is 61440583. The next prime is 61440629. The reversal of 61440611 is 11604416.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61440611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61440671) 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, 45815 + ... + 47136.

It is an arithmetic number, because the mean of its divisors is an integer number (15383556).

Almost surely, 2^61440611 is an apocalyptic number.

61440611 is a deficient number, since it is larger than the sum of its proper divisors (93613).

61440611 is an equidigital number, since it uses as much as digits as its factorization.

61440611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93612.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 61440611 is about 7838.4061517633. The cubic root of 61440611 is about 394.5952399229.

The spelling of 61440611 in words is "sixty-one million, four hundred forty thousand, six hundred eleven".