61325449 has 2 divisors, whose sum is σ = 61325450. Its totient is φ = 61325448.

The previous prime is 61325441. The next prime is 61325491. The reversal of 61325449 is 94452316.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57836025 + 3489424 = 7605^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 61325449 - 2³ = 61325441 is a prime.

It is not a weakly prime, because it can be changed into another prime (61325441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30662724 + 30662725.

It is an arithmetic number, because the mean of its divisors is an integer number (30662725).

Almost surely, 2^61325449 is an apocalyptic number.

It is an amenable number.

61325449 is a deficient number, since it is larger than the sum of its proper divisors (1).

61325449 is an equidigital number, since it uses as much as digits as its factorization.

61325449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 61325449 is about 7831.0566975345. The cubic root of 61325449 is about 394.3485475061.

It can be divided in two parts, 613 and 25449, that added together give a palindrome (26062).

The spelling of 61325449 in words is "sixty-one million, three hundred twenty-five thousand, four hundred forty-nine".