61285558 has 8 divisors (see below), whose sum is σ = 92014560. Its totient is φ = 30614040.

The previous prime is 61285537. The next prime is 61285573. The reversal of 61285558 is 85558216.

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

It is a super-3 number, since 3×61285558³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61285558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11598 + ... + 16033.

It is an arithmetic number, because the mean of its divisors is an integer number (11501820).

Almost surely, 2^61285558 is an apocalyptic number.

61285558 is a deficient number, since it is larger than the sum of its proper divisors (30729002).

61285558 is a wasteful number, since it uses less digits than its factorization.

61285558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28742.

The product of its digits is 96000, while the sum is 40.

The square root of 61285558 is about 7828.5093089298. The cubic root of 61285558 is about 394.2630236314.

The spelling of 61285558 in words is "sixty-one million, two hundred eighty-five thousand, five hundred fifty-eight".