61253273 has 2 divisors, whose sum is σ = 61253274. Its totient is φ = 61253272.

The previous prime is 61253239. The next prime is 61253299. The reversal of 61253273 is 37235216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51437584 + 9815689 = 7172^2 + 3133^2 .

It is a cyclic number.

It is not a de Polignac number, because 61253273 - 2¹⁸ = 60991129 is a prime.

It is not a weakly prime, because it can be changed into another prime (61253233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30626636 + 30626637.

It is an arithmetic number, because the mean of its divisors is an integer number (30626637).

Almost surely, 2^61253273 is an apocalyptic number.

It is an amenable number.

61253273 is a deficient number, since it is larger than the sum of its proper divisors (1).

61253273 is an equidigital number, since it uses as much as digits as its factorization.

61253273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 61253273 is about 7826.4470227556. The cubic root of 61253273 is about 394.1937793813.

Adding to 61253273 its reverse (37235216), we get a palindrome (98488489).

The spelling of 61253273 in words is "sixty-one million, two hundred fifty-three thousand, two hundred seventy-three".