61266253 has 2 divisors, whose sum is σ = 61266254. Its totient is φ = 61266252.

The previous prime is 61266221. The next prime is 61266269. The reversal of 61266253 is 35266216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50651689 + 10614564 = 7117^2 + 3258^2 .

It is a cyclic number.

It is not a de Polignac number, because 61266253 - 2⁵ = 61266221 is a prime.

It is equal to p_3632791 and since 61266253 and 3632791 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61266853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30633126 + 30633127.

It is an arithmetic number, because the mean of its divisors is an integer number (30633127).

Almost surely, 2^61266253 is an apocalyptic number.

It is an amenable number.

61266253 is a deficient number, since it is larger than the sum of its proper divisors (1).

61266253 is an equidigital number, since it uses as much as digits as its factorization.

61266253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 61266253 is about 7827.2762184556. The cubic root of 61266253 is about 394.2216215609.

The spelling of 61266253 in words is "sixty-one million, two hundred sixty-six thousand, two hundred fifty-three".