61322605 has 8 divisors (see below), whose sum is σ = 73774872. Its totient is φ = 48932928.

The previous prime is 61322603. The next prime is 61322683. The reversal of 61322605 is 50622316.

It can be written as a sum of positive squares in 4 ways, for example, as 7123561 + 54199044 = 2669^2 + 7362^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61322605 - 2¹ = 61322603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61322605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61322603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13462 + ... + 17431.

It is an arithmetic number, because the mean of its divisors is an integer number (9221859).

Almost surely, 2^61322605 is an apocalyptic number.

It is an amenable number.

61322605 is a deficient number, since it is larger than the sum of its proper divisors (12452267).

61322605 is a wasteful number, since it uses less digits than its factorization.

61322605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31295.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 61322605 is about 7830.8751107395. The cubic root of 61322605 is about 394.3424513713.

The spelling of 61322605 in words is "sixty-one million, three hundred twenty-two thousand, six hundred five".