61255297 has 4 divisors (see below), whose sum is σ = 64479280. Its totient is φ = 58031316.

The previous prime is 61255291. The next prime is 61255307. The reversal of 61255297 is 79255216.

61255297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61255297 - 2³ = 61255289 is a prime.

It is a super-2 number, since 2×61255297² = 7504422821116418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61255291) 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 in 3 ways as a sum of consecutive naturals, for example, 1611963 + ... + 1612000.

It is an arithmetic number, because the mean of its divisors is an integer number (16119820).

Almost surely, 2^61255297 is an apocalyptic number.

It is an amenable number.

61255297 is a deficient number, since it is larger than the sum of its proper divisors (3223983).

61255297 is a wasteful number, since it uses less digits than its factorization.

61255297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223982.

The product of its digits is 37800, while the sum is 37.

The square root of 61255297 is about 7826.5763268494. The cubic root of 61255297 is about 394.1981211325.

The spelling of 61255297 in words is "sixty-one million, two hundred fifty-five thousand, two hundred ninety-seven".