52903021 has 2 divisors, whose sum is σ = 52903022. Its totient is φ = 52903020.

The previous prime is 52903003. The next prime is 52903057. The reversal of 52903021 is 12030925.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 3200521 = 7050^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 52903021 - 2²³ = 44514413 is a prime.

It is equal to p_3164611 and since 52903021 and 3164611 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 52902983 and 52903001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52903091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26451510 + 26451511.

It is an arithmetic number, because the mean of its divisors is an integer number (26451511).

Almost surely, 2^52903021 is an apocalyptic number.

It is an amenable number.

52903021 is a deficient number, since it is larger than the sum of its proper divisors (1).

52903021 is an equidigital number, since it uses as much as digits as its factorization.

52903021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 52903021 is about 7273.4462945704. The cubic root of 52903021 is about 375.3993280961.

Adding to 52903021 its reverse (12030925), we get a palindrome (64933946).

The spelling of 52903021 in words is "fifty-two million, nine hundred three thousand, twenty-one".