61993552 has 20 divisors (see below), whose sum is σ = 123988096. Its totient is φ = 29996640.

The previous prime is 61993549. The next prime is 61993597. The reversal of 61993552 is 25539916.

It is a happy number.

61993552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

61993552 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61998 + ... + 62989.

Almost surely, 2^61993552 is an apocalyptic number.

61993552 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61993552 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61993552 is a wasteful number, since it uses less digits than its factorization.

61993552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125026 (or 125020 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The square root of 61993552 is about 7873.5984149562. The cubic root of 61993552 is about 395.7754398014.

The spelling of 61993552 in words is "sixty-one million, nine hundred ninety-three thousand, five hundred fifty-two".