61375579 has 8 divisors (see below), whose sum is σ = 62279568. Its totient is φ = 60477600.

The previous prime is 61375549. The next prime is 61375583. The reversal of 61375579 is 97557316.

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 61375579 - 2¹¹ = 61373531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61375519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21589 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (7784946).

Almost surely, 2^61375579 is an apocalyptic number.

61375579 is a deficient number, since it is larger than the sum of its proper divisors (903989).

61375579 is a wasteful number, since it uses less digits than its factorization.

61375579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its digits is 198450, while the sum is 43.

The square root of 61375579 is about 7834.2567611740. The cubic root of 61375579 is about 394.4559706008.

The spelling of 61375579 in words is "sixty-one million, three hundred seventy-five thousand, five hundred seventy-nine".