60255781 has 4 divisors (see below), whose sum is σ = 60789132. Its totient is φ = 59722432.

The previous prime is 60255779. The next prime is 60255809. The reversal of 60255781 is 18755206.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18755206 = 2 ⋅9377603.

It can be written as a sum of positive squares in 2 ways, for example, as 11730625 + 48525156 = 3425^2 + 6966^2 .

It is a cyclic number.

It is not a de Polignac number, because 60255781 - 2¹ = 60255779 is a prime.

It is a super-2 number, since 2×60255781² = 7261518287839922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60265781) 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, 266506 + ... + 266731.

It is an arithmetic number, because the mean of its divisors is an integer number (15197283).

Almost surely, 2^60255781 is an apocalyptic number.

It is an amenable number.

60255781 is a deficient number, since it is larger than the sum of its proper divisors (533351).

60255781 is a wasteful number, since it uses less digits than its factorization.

60255781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533350.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 60255781 is about 7762.4597261435. The cubic root of 60255781 is about 392.0422803382.

The spelling of 60255781 in words is "sixty million, two hundred fifty-five thousand, seven hundred eighty-one".