52878731 has 2 divisors, whose sum is σ = 52878732. Its totient is φ = 52878730.

The previous prime is 52878703. The next prime is 52878737. The reversal of 52878731 is 13787825.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52878731 is a prime.

It is a super-2 number, since 2×52878731² = 5592320384340722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52878737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26439365 + 26439366.

It is an arithmetic number, because the mean of its divisors is an integer number (26439366).

Almost surely, 2^52878731 is an apocalyptic number.

52878731 is a deficient number, since it is larger than the sum of its proper divisors (1).

52878731 is an equidigital number, since it uses as much as digits as its factorization.

52878731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 41.

The square root of 52878731 is about 7271.7763304436. The cubic root of 52878731 is about 375.3418654319.

The spelling of 52878731 in words is "fifty-two million, eight hundred seventy-eight thousand, seven hundred thirty-one".