61332590 has 32 divisors (see below), whose sum is σ = 121002336. Its totient is φ = 22197760.

The previous prime is 61332581. The next prime is 61332631. The reversal of 61332590 is 9523316.

It is a super-2 number, since 2×61332590² = 7523373192216200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24434 + ... + 26826.

It is an arithmetic number, because the mean of its divisors is an integer number (3781323).

Almost surely, 2^61332590 is an apocalyptic number.

61332590 is a deficient number, since it is larger than the sum of its proper divisors (59669746).

61332590 is a wasteful number, since it uses less digits than its factorization.

61332590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 61332590 is about 7831.5126252851. The cubic root of 61332590 is about 394.3638534610.

The spelling of 61332590 in words is "sixty-one million, three hundred thirty-two thousand, five hundred ninety".