61560263 has 2 divisors, whose sum is σ = 61560264. Its totient is φ = 61560262.

The previous prime is 61560217. The next prime is 61560277. The reversal of 61560263 is 36206516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61560263 - 2⁶ = 61560199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61560283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30780131 + 30780132.

It is an arithmetic number, because the mean of its divisors is an integer number (30780132).

Almost surely, 2^61560263 is an apocalyptic number.

61560263 is a deficient number, since it is larger than the sum of its proper divisors (1).

61560263 is an equidigital number, since it uses as much as digits as its factorization.

61560263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 61560263 is about 7846.0348584492. The cubic root of 61560263 is about 394.8512242145.

Adding to 61560263 its reverse (36206516), we get a palindrome (97766779).

It can be divided in two parts, 615 and 60263, that multiplied together give a triangular number (37061745 = T₈₆₀₉).

The spelling of 61560263 in words is "sixty-one million, five hundred sixty thousand, two hundred sixty-three".