61853312 has 16 divisors (see below), whose sum is σ = 123223650. Its totient is φ = 30926592.

The previous prime is 61853273. The next prime is 61853321. The reversal of 61853312 is 21335816.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 10816 = 7864^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241487 + ... + 241742.

Almost surely, 2^61853312 is an apocalyptic number.

It is an amenable number.

61853312 is a deficient number, since it is larger than the sum of its proper divisors (61370338).

61853312 is an equidigital number, since it uses as much as digits as its factorization.

61853312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483243 (or 483231 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 61853312 is about 7864.6876606767. The cubic root of 61853312 is about 395.4767772718.

The spelling of 61853312 in words is "sixty-one million, eight hundred fifty-three thousand, three hundred twelve".