60571561 has 4 divisors (see below), whose sum is σ = 64134612. Its totient is φ = 57008512.

The previous prime is 60571549. The next prime is 60571573. The reversal of 60571561 is 16517506.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (60571549) and next prime (60571573).

It can be written as a sum of positive squares in 2 ways, for example, as 42771600 + 17799961 = 6540^2 + 4219^2 .

It is a cyclic number.

It is not a de Polignac number, because 60571561 - 2¹³ = 60563369 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60571541) 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, 1781500 + ... + 1781533.

It is an arithmetic number, because the mean of its divisors is an integer number (16033653).

Almost surely, 2^60571561 is an apocalyptic number.

It is an amenable number.

60571561 is a deficient number, since it is larger than the sum of its proper divisors (3563051).

60571561 is a wasteful number, since it uses less digits than its factorization.

60571561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563050.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 60571561 is about 7782.7733488776. The cubic root of 60571561 is about 392.7259407478.

The spelling of 60571561 in words is "sixty million, five hundred seventy-one thousand, five hundred sixty-one".