61853244 has 24 divisors (see below), whose sum is σ = 144504528. Its totient is φ = 20592000.

The previous prime is 61853243. The next prime is 61853257. The reversal of 61853244 is 44235816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61853243) 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 7 ways as a sum of consecutive naturals, for example, 8494 + ... + 13994.

It is an arithmetic number, because the mean of its divisors is an integer number (6021022).

Almost surely, 2^61853244 is an apocalyptic number.

It is an amenable number.

61853244 is an abundant number, since it is smaller than the sum of its proper divisors (82651284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61853244 is a wasteful number, since it uses less digits than its factorization.

61853244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6443 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 61853244 is about 7864.6833375540. The cubic root of 61853244 is about 395.4766323459.

The spelling of 61853244 in words is "sixty-one million, eight hundred fifty-three thousand, two hundred forty-four".