425533129 has 4 divisors (see below), whose sum is σ = 486323584. Its totient is φ = 364742676.

The previous prime is 425533109. The next prime is 425533151. The reversal of 425533129 is 921335524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425533129 - 2¹¹ = 425531081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425533094 and 425533103.

It is not an unprimeable number, because it can be changed into a prime (425533109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30395217 + ... + 30395230.

It is an arithmetic number, because the mean of its divisors is an integer number (121580896).

Almost surely, 2^425533129 is an apocalyptic number.

It is an amenable number.

425533129 is a deficient number, since it is larger than the sum of its proper divisors (60790455).

425533129 is an equidigital number, since it uses as much as digits as its factorization.

425533129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60790454.

The product of its digits is 32400, while the sum is 34.

The square root of 425533129 is about 20628.4543531502. The cubic root of 425533129 is about 752.1615444641.

The spelling of 425533129 in words is "four hundred twenty-five million, five hundred thirty-three thousand, one hundred twenty-nine".