61258959 has 12 divisors (see below), whose sum is σ = 92332656. Its totient is φ = 39063552.

The previous prime is 61258943. The next prime is 61258963. The reversal of 61258959 is 95985216.

61258959 is a `hidden beast` number, since 6 + 12 + 589 + 59 = 666.

It is not a de Polignac number, because 61258959 - 2⁴ = 61258943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61258919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147762 + ... + 148175.

It is an arithmetic number, because the mean of its divisors is an integer number (7694388).

Almost surely, 2^61258959 is an apocalyptic number.

61258959 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

61258959 is a deficient number, since it is larger than the sum of its proper divisors (31073697).

61258959 is a wasteful number, since it uses less digits than its factorization.

61258959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295966 (or 295963 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 61258959 is about 7826.8102698353. The cubic root of 61258959 is about 394.2059763702.

The spelling of 61258959 in words is "sixty-one million, two hundred fifty-eight thousand, nine hundred fifty-nine".