521233051 has 2 divisors, whose sum is σ = 521233052. Its totient is φ = 521233050.

The previous prime is 521233021. The next prime is 521233091. The reversal of 521233051 is 150332125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 521233051 - 2⁹ = 521232539 is a prime.

It is not a weakly prime, because it can be changed into another prime (521233001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260616525 + 260616526.

It is an arithmetic number, because the mean of its divisors is an integer number (260616526).

Almost surely, 2^521233051 is an apocalyptic number.

521233051 is a deficient number, since it is larger than the sum of its proper divisors (1).

521233051 is an equidigital number, since it uses as much as digits as its factorization.

521233051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 521233051 is about 22830.5289251038. The cubic root of 521233051 is about 804.7802602271.

Adding to 521233051 its reverse (150332125), we get a palindrome (671565176).

The spelling of 521233051 in words is "five hundred twenty-one million, two hundred thirty-three thousand, fifty-one".