61654405 has 8 divisors (see below), whose sum is σ = 75089952. Its totient is φ = 48587088.

The previous prime is 61654361. The next prime is 61654409. The reversal of 61654405 is 50445616.

61654405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61654405 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 (61654409) 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 7 ways as a sum of consecutive naturals, for example, 91687 + ... + 92356.

It is an arithmetic number, because the mean of its divisors is an integer number (9386244).

Almost surely, 2^61654405 is an apocalyptic number.

It is an amenable number.

61654405 is a deficient number, since it is larger than the sum of its proper divisors (13435547).

61654405 is a wasteful number, since it uses less digits than its factorization.

61654405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184115.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 61654405 is about 7852.0319026351. The cubic root of 61654405 is about 395.0523991801.

The spelling of 61654405 in words is "sixty-one million, six hundred fifty-four thousand, four hundred five".