61586825 has 6 divisors (see below), whose sum is σ = 76367694. Its totient is φ = 49269440.

The previous prime is 61586813. The next prime is 61586839. The reversal of 61586825 is 52868516.

It can be written as a sum of positive squares in 3 ways, for example, as 3644281 + 57942544 = 1909^2 + 7612^2 .

It is not a de Polignac number, because 61586825 - 2¹⁴ = 61570441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1231712 + ... + 1231761.

It is an arithmetic number, because the mean of its divisors is an integer number (12727949).

Almost surely, 2^61586825 is an apocalyptic number.

It is an amenable number.

61586825 is a deficient number, since it is larger than the sum of its proper divisors (14780869).

61586825 is a wasteful number, since it uses less digits than its factorization.

61586825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463483 (or 2463478 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 61586825 is about 7847.7273780375. The cubic root of 61586825 is about 394.9080061364.

The spelling of 61586825 in words is "sixty-one million, five hundred eighty-six thousand, eight hundred twenty-five".