510421025 has 12 divisors (see below), whose sum is σ = 654747900. Its totient is φ = 394255680.

The previous prime is 510421007. The next prime is 510421049. The reversal of 510421025 is 520124015.

It can be written as a sum of positive squares in 6 ways, for example, as 6822544 + 503598481 = 2612^2 + 22441^2 .

It is not a de Polignac number, because 510421025 - 2¹⁴ = 510404641 is a prime.

It is a super-3 number, since 3×510421025³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 510420988 and 510421006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351290 + ... + 352739.

It is an arithmetic number, because the mean of its divisors is an integer number (54562325).

Almost surely, 2^510421025 is an apocalyptic number.

It is an amenable number.

510421025 is a deficient number, since it is larger than the sum of its proper divisors (144326875).

510421025 is a wasteful number, since it uses less digits than its factorization.

510421025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704068 (or 704063 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 510421025 is about 22592.4993083988. The cubic root of 510421025 is about 799.1767703442.

The spelling of 510421025 in words is "five hundred ten million, four hundred twenty-one thousand, twenty-five".