61825985 has 16 divisors (see below), whose sum is σ = 80080896. Its totient is φ = 45551808.

The previous prime is 61825961. The next prime is 61826003. The reversal of 61825985 is 58952816.

It is a cyclic number.

It is not a de Polignac number, because 61825985 - 2¹² = 61821889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38672 + ... + 40238.

It is an arithmetic number, because the mean of its divisors is an integer number (5005056).

Almost surely, 2^61825985 is an apocalyptic number.

61825985 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61825985 is a deficient number, since it is larger than the sum of its proper divisors (18254911).

61825985 is a wasteful number, since it uses less digits than its factorization.

61825985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192.

The product of its digits is 172800, while the sum is 44.

The square root of 61825985 is about 7862.9501460966. The cubic root of 61825985 is about 395.4185277053.

It can be divided in two parts, 6182 and 5985, that added together give a cube (12167 = 23³).

The spelling of 61825985 in words is "sixty-one million, eight hundred twenty-five thousand, nine hundred eighty-five".