526721053 has 2 divisors, whose sum is σ = 526721054. Its totient is φ = 526721052.

The previous prime is 526721017. The next prime is 526721087. The reversal of 526721053 is 350127625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355058649 + 171662404 = 18843^2 + 13102^2 .

It is a cyclic number.

It is not a de Polignac number, because 526721053 - 2²¹ = 524623901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526721003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263360526 + 263360527.

It is an arithmetic number, because the mean of its divisors is an integer number (263360527).

Almost surely, 2^526721053 is an apocalyptic number.

It is an amenable number.

526721053 is a deficient number, since it is larger than the sum of its proper divisors (1).

526721053 is an equidigital number, since it uses as much as digits as its factorization.

526721053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 526721053 is about 22950.4042012336. The cubic root of 526721053 is about 807.5948841016.

Adding to 526721053 its reverse (350127625), we get a palindrome (876848678).

The spelling of 526721053 in words is "five hundred twenty-six million, seven hundred twenty-one thousand, fifty-three".