61891652 has 12 divisors (see below), whose sum is σ = 109927440. Its totient is φ = 30483816.

The previous prime is 61891633. The next prime is 61891657. The reversal of 61891652 is 25619816.

It is not an unprimeable number, because it can be changed into a prime (61891657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115202 + ... + 115737.

It is an arithmetic number, because the mean of its divisors is an integer number (9160620).

Almost surely, 2^61891652 is an apocalyptic number.

It is an amenable number.

61891652 is a deficient number, since it is larger than the sum of its proper divisors (48035788).

61891652 is a wasteful number, since it uses less digits than its factorization.

61891652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231010 (or 231008 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 61891652 is about 7867.1247606734. The cubic root of 61891652 is about 395.5584729664.

The spelling of 61891652 in words is "sixty-one million, eight hundred ninety-one thousand, six hundred fifty-two".