77542052 has 12 divisors (see below), whose sum is σ = 155084160. Its totient is φ = 33232296.

The previous prime is 77542037. The next prime is 77542061. The reversal of 77542052 is 25024577.

77542052 is an admirable 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, 1384652 + ... + 1384707.

It is an arithmetic number, because the mean of its divisors is an integer number (12923680).

Almost surely, 2^77542052 is an apocalyptic number.

It is an amenable number.

77542052 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.

77542052 is a wasteful number, since it uses less digits than its factorization.

77542052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769370 (or 2769368 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 77542052 is about 8805.7965000334. The cubic root of 77542052 is about 426.4280488127.

The spelling of 77542052 in words is "seventy-seven million, five hundred forty-two thousand, fifty-two".