52556407 has 2 divisors, whose sum is σ = 52556408. Its totient is φ = 52556406.

The previous prime is 52556393. The next prime is 52556411. The reversal of 52556407 is 70465525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52556407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52556437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26278203 + 26278204.

It is an arithmetic number, because the mean of its divisors is an integer number (26278204).

Almost surely, 2^52556407 is an apocalyptic number.

52556407 is a deficient number, since it is larger than the sum of its proper divisors (1).

52556407 is an equidigital number, since it uses as much as digits as its factorization.

52556407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 52556407 is about 7249.5797809252. The cubic root of 52556407 is about 374.5776744809.

The spelling of 52556407 in words is "fifty-two million, five hundred fifty-six thousand, four hundred seven".