52780077 has 12 divisors (see below), whose sum is σ = 87129120. Its totient is φ = 30160008.

The previous prime is 52780069. The next prime is 52780099. The reversal of 52780077 is 77008725.

52780077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52780077 - 2³ = 52780069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52780037) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 418827 + ... + 418952.

It is an arithmetic number, because the mean of its divisors is an integer number (7260760).

Almost surely, 2^52780077 is an apocalyptic number.

It is an amenable number.

52780077 is a deficient number, since it is larger than the sum of its proper divisors (34349043).

52780077 is a wasteful number, since it uses less digits than its factorization.

52780077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837792 (or 837789 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 52780077 is about 7264.9898141704. The cubic root of 52780077 is about 375.1082993870.

The spelling of 52780077 in words is "fifty-two million, seven hundred eighty thousand, seventy-seven".