60613561 has 4 divisors (see below), whose sum is σ = 60634512. Its totient is φ = 60592612.

The previous prime is 60613541. The next prime is 60613573. The reversal of 60613561 is 16531606.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60613561 - 2⁵ = 60613529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60613541) 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, 5275 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (15158628).

Almost surely, 2^60613561 is an apocalyptic number.

It is an amenable number.

60613561 is a deficient number, since it is larger than the sum of its proper divisors (20951).

60613561 is a wasteful number, since it uses less digits than its factorization.

60613561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20950.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 60613561 is about 7785.4711482350. The cubic root of 60613561 is about 392.8166911391.

The spelling of 60613561 in words is "sixty million, six hundred thirteen thousand, five hundred sixty-one".