52780302 has 16 divisors (see below), whose sum is σ = 117289680. Its totient is φ = 17593416.

The previous prime is 52780297. The next prime is 52780303. The reversal of 52780302 is 20308725.

52780302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52780302² = 5571520558422408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52780303) 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 7 ways as a sum of consecutive naturals, for example, 488653 + ... + 488760.

It is an arithmetic number, because the mean of its divisors is an integer number (7330605).

Almost surely, 2^52780302 is an apocalyptic number.

52780302 is an abundant number, since it is smaller than the sum of its proper divisors (64509378).

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

52780302 is a wasteful number, since it uses less digits than its factorization.

52780302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977424 (or 977418 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 52780302 is about 7265.0052993787. The cubic root of 52780302 is about 375.1088324116.

The spelling of 52780302 in words is "fifty-two million, seven hundred eighty thousand, three hundred two".