52521047 has 2 divisors, whose sum is σ = 52521048. Its totient is φ = 52521046.

The previous prime is 52520981. The next prime is 52521067. The reversal of 52521047 is 74012525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52521047 - 2¹² = 52516951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52521067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26260523 + 26260524.

It is an arithmetic number, because the mean of its divisors is an integer number (26260524).

Almost surely, 2^52521047 is an apocalyptic number.

52521047 is a deficient number, since it is larger than the sum of its proper divisors (1).

52521047 is an equidigital number, since it uses as much as digits as its factorization.

52521047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 52521047 is about 7247.1406085435. The cubic root of 52521047 is about 374.4936502305.

The spelling of 52521047 in words is "fifty-two million, five hundred twenty-one thousand, forty-seven".