61258285 has 8 divisors (see below), whose sum is σ = 80192736. Its totient is φ = 44551440.

The previous prime is 61258283. The next prime is 61258297. The reversal of 61258285 is 58285216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61258285 - 2¹ = 61258283 is a prime.

It is a super-2 number, since 2×61258285² = 7505154962282450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61258283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556839 + ... + 556948.

It is an arithmetic number, because the mean of its divisors is an integer number (10024092).

Almost surely, 2^61258285 is an apocalyptic number.

It is an amenable number.

61258285 is a deficient number, since it is larger than the sum of its proper divisors (18934451).

61258285 is a wasteful number, since it uses less digits than its factorization.

61258285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113803.

The product of its digits is 38400, while the sum is 37.

The square root of 61258285 is about 7826.7672125853. The cubic root of 61258285 is about 394.2045306181.

The spelling of 61258285 in words is "sixty-one million, two hundred fifty-eight thousand, two hundred eighty-five".