61255269 has 12 divisors (see below), whose sum is σ = 88872576. Its totient is φ = 40655592.

The previous prime is 61255247. The next prime is 61255273. The reversal of 61255269 is 96255216.

61255269 is a `hidden beast` number, since 6 + 125 + 526 + 9 = 666.

It is not a de Polignac number, because 61255269 - 2²¹ = 59158117 is a prime.

It is a super-2 number, since 2×61255269² = 7504415960524722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61255289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12949 + ... + 17034.

It is an arithmetic number, because the mean of its divisors is an integer number (7406048).

Almost surely, 2^61255269 is an apocalyptic number.

It is an amenable number.

61255269 is a deficient number, since it is larger than the sum of its proper divisors (27617307).

61255269 is a wasteful number, since it uses less digits than its factorization.

61255269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30216 (or 30213 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 61255269 is about 7826.5745380722. The cubic root of 61255269 is about 394.1980610694.

The spelling of 61255269 in words is "sixty-one million, two hundred fifty-five thousand, two hundred sixty-nine".