61565298 has 8 divisors (see below), whose sum is σ = 123130608. Its totient is φ = 20521764.

The previous prime is 61565297. The next prime is 61565303. The reversal of 61565298 is 89256516.

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

61565298 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61565291) 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, 5130436 + ... + 5130447.

It is an arithmetic number, because the mean of its divisors is an integer number (15391326).

Almost surely, 2^61565298 is an apocalyptic number.

61565298 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61565298 is a wasteful number, since it uses less digits than its factorization.

61565298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260888.

The product of its digits is 129600, while the sum is 42.

The square root of 61565298 is about 7846.3557145977. The cubic root of 61565298 is about 394.8619888519.

The spelling of 61565298 in words is "sixty-one million, five hundred sixty-five thousand, two hundred ninety-eight".