61575253 has 2 divisors, whose sum is σ = 61575254. Its totient is φ = 61575252.

The previous prime is 61575229. The next prime is 61575263. The reversal of 61575253 is 35257516.

61575253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56655729 + 4919524 = 7527^2 + 2218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61575253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61575203) 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 as a sum of consecutive naturals, namely, 30787626 + 30787627.

It is an arithmetic number, because the mean of its divisors is an integer number (30787627).

Almost surely, 2^61575253 is an apocalyptic number.

It is an amenable number.

61575253 is a deficient number, since it is larger than the sum of its proper divisors (1).

61575253 is an equidigital number, since it uses as much as digits as its factorization.

61575253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 34.

The square root of 61575253 is about 7846.9900598892. The cubic root of 61575253 is about 394.8832705337.

The spelling of 61575253 in words is "sixty-one million, five hundred seventy-five thousand, two hundred fifty-three".