61268556 has 24 divisors (see below), whose sum is σ = 143138800. Its totient is φ = 20397312.

The previous prime is 61268539. The next prime is 61268563. The reversal of 61268556 is 65586216.

61268556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 8520 + ... + 13968.

Almost surely, 2^61268556 is an apocalyptic number.

It is an amenable number.

61268556 is an abundant number, since it is smaller than the sum of its proper divisors (81870244).

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

61268556 is a wasteful number, since it uses less digits than its factorization.

61268556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393 (or 6391 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 61268556 is about 7827.4233308286. The cubic root of 61268556 is about 394.2265610992.

The spelling of 61268556 in words is "sixty-one million, two hundred sixty-eight thousand, five hundred fifty-six".