61825823 has 4 divisors (see below), whose sum is σ = 61883280. Its totient is φ = 61768368.

The previous prime is 61825807. The next prime is 61825847. The reversal of 61825823 is 32852816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61825823 - 2⁴ = 61825807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61825723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27083 + ... + 29276.

It is an arithmetic number, because the mean of its divisors is an integer number (15470820).

Almost surely, 2^61825823 is an apocalyptic number.

61825823 is a deficient number, since it is larger than the sum of its proper divisors (57457).

61825823 is a wasteful number, since it uses less digits than its factorization.

61825823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57456.

The product of its digits is 23040, while the sum is 35.

The square root of 61825823 is about 7862.9398446128. The cubic root of 61825823 is about 395.4181823388.

The spelling of 61825823 in words is "sixty-one million, eight hundred twenty-five thousand, eight hundred twenty-three".