52780037 has 2 divisors, whose sum is σ = 52780038. Its totient is φ = 52780036.

The previous prime is 52780001. The next prime is 52780061. The reversal of 52780037 is 73008725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 23338561 = 5426^2 + 4831^2 .

It is a cyclic number.

It is not a de Polignac number, because 52780037 - 2⁶ = 52779973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52779985 and 52780012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52780337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26390018 + 26390019.

It is an arithmetic number, because the mean of its divisors is an integer number (26390019).

Almost surely, 2^52780037 is an apocalyptic number.

It is an amenable number.

52780037 is a deficient number, since it is larger than the sum of its proper divisors (1).

52780037 is an equidigital number, since it uses as much as digits as its factorization.

52780037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 52780037 is about 7264.9870612411. The cubic root of 52780037 is about 375.1082046269.

The spelling of 52780037 in words is "fifty-two million, seven hundred eighty thousand, thirty-seven".