61654465 has 4 divisors (see below), whose sum is σ = 73985364. Its totient is φ = 49323568.

The previous prime is 61654409. The next prime is 61654501. The reversal of 61654465 is 56445616.

61654465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32364721 + 29289744 = 5689^2 + 5412^2 .

It is a cyclic number.

It is not a de Polignac number, because 61654465 - 2⁷ = 61654337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6165442 + ... + 6165451.

It is an arithmetic number, because the mean of its divisors is an integer number (18496341).

Almost surely, 2^61654465 is an apocalyptic number.

It is an amenable number.

61654465 is a deficient number, since it is larger than the sum of its proper divisors (12330899).

61654465 is a wasteful number, since it uses less digits than its factorization.

61654465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12330898.

The product of its digits is 86400, while the sum is 37.

The square root of 61654465 is about 7852.0357233013. The cubic root of 61654465 is about 395.0525273307.

The spelling of 61654465 in words is "sixty-one million, six hundred fifty-four thousand, four hundred sixty-five".