61600513 has 8 divisors (see below), whose sum is σ = 66400488. Its totient is φ = 56809344.

The previous prime is 61600507. The next prime is 61600519. The reversal of 61600513 is 31500616.

It is an interprime number because it is at equal distance from previous prime (61600507) and next prime (61600519).

It can be written as a sum of positive squares in 4 ways, for example, as 9659664 + 51940849 = 3108^2 + 7207^2 .

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 61600513 - 2²¹ = 59503361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61600519) 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, 23631 + ... + 26107.

It is an arithmetic number, because the mean of its divisors is an integer number (8300061).

Almost surely, 2^61600513 is an apocalyptic number.

It is an amenable number.

61600513 is a deficient number, since it is larger than the sum of its proper divisors (4799975).

61600513 is a wasteful number, since it uses less digits than its factorization.

61600513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 61600513 is about 7848.5994291975. The cubic root of 61600513 is about 394.9372607720.

The spelling of 61600513 in words is "sixty-one million, six hundred thousand, five hundred thirteen".