61060257 has 16 divisors (see below), whose sum is σ = 91359360. Its totient is φ = 40302000.

The previous prime is 61060253. The next prime is 61060267. The reversal of 61060257 is 75206016.

61060257 is a `hidden beast` number, since 6 + 1 + 0 + 602 + 57 = 666.

61060257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61060257 - 2² = 61060253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 61060257.

It is not an unprimeable number, because it can be changed into a prime (61060253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8469 + ... + 13922.

It is an arithmetic number, because the mean of its divisors is an integer number (5709960).

Almost surely, 2^61060257 is an apocalyptic number.

It is an amenable number.

61060257 is a deficient number, since it is larger than the sum of its proper divisors (30299103).

61060257 is a wasteful number, since it uses less digits than its factorization.

61060257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22501 (or 22495 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 61060257 is about 7814.1062828707. The cubic root of 61060257 is about 393.7792939657.

The spelling of 61060257 in words is "sixty-one million, sixty thousand, two hundred fifty-seven".