60256561 has 4 divisors (see below), whose sum is σ = 60450624. Its totient is φ = 60062500.

The previous prime is 60256549. The next prime is 60256583. The reversal of 60256561 is 16565206.

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 6-Lehmer number, since φ(60256561) divides (60256561-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 60256561 - 2⁷ = 60256433 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 (60256501) 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, 96565 + ... + 97186.

It is an arithmetic number, because the mean of its divisors is an integer number (15112656).

Almost surely, 2^60256561 is an apocalyptic number.

60256561 is the 3472-nd centered decagonal number.

It is an amenable number.

60256561 is a deficient number, since it is larger than the sum of its proper divisors (194063).

60256561 is a wasteful number, since it uses less digits than its factorization.

60256561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194062.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 60256561 is about 7762.5099677875. The cubic root of 60256561 is about 392.0439719693.

The spelling of 60256561 in words is "sixty million, two hundred fifty-six thousand, five hundred sixty-one".