421125053 has 2 divisors, whose sum is σ = 421125054. Its totient is φ = 421125052.

The previous prime is 421124999. The next prime is 421125059. The reversal of 421125053 is 350521124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228553924 + 192571129 = 15118^2 + 13877^2 .

It is a cyclic number.

It is not a de Polignac number, because 421125053 - 2¹⁴ = 421108669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421125059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210562526 + 210562527.

It is an arithmetic number, because the mean of its divisors is an integer number (210562527).

Almost surely, 2^421125053 is an apocalyptic number.

It is an amenable number.

421125053 is a deficient number, since it is larger than the sum of its proper divisors (1).

421125053 is an equidigital number, since it uses as much as digits as its factorization.

421125053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 421125053 is about 20521.3316575704. The cubic root of 421125053 is about 749.5553233653. Note that the first 3 decimals are identical.

Adding to 421125053 its reverse (350521124), we get a palindrome (771646177).

The spelling of 421125053 in words is "four hundred twenty-one million, one hundred twenty-five thousand, fifty-three".