60661313 has 4 divisors (see below), whose sum is σ = 60714288. Its totient is φ = 60608340.

The previous prime is 60661303. The next prime is 60661339. The reversal of 60661313 is 31316606.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31316606 = 2 ⋅15658303.

It is a cyclic number.

It is not a de Polignac number, because 60661313 - 2¹⁴ = 60644929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60661303) 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, 24731 + ... + 27072.

It is an arithmetic number, because the mean of its divisors is an integer number (15178572).

Almost surely, 2^60661313 is an apocalyptic number.

It is an amenable number.

60661313 is a deficient number, since it is larger than the sum of its proper divisors (52975).

60661313 is a wasteful number, since it uses less digits than its factorization.

60661313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52974.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 60661313 is about 7788.5372824427. The cubic root of 60661313 is about 392.9198191005.

Adding to 60661313 its reverse (31316606), we get a palindrome (91977919).

The spelling of 60661313 in words is "sixty million, six hundred sixty-one thousand, three hundred thirteen".