425007209 has 16 divisors (see below), whose sum is σ = 482137920. Its totient is φ = 371098560.

The previous prime is 425007199. The next prime is 425007239. The reversal of 425007209 is 902700524.

It is a cyclic number.

It is not a de Polignac number, because 425007209 - 2¹² = 425003113 is a prime.

It is a super-2 number, since 2×425007209² = 361262255403939362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (425007239) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 59462 + ... + 66224.

It is an arithmetic number, because the mean of its divisors is an integer number (30133620).

Almost surely, 2^425007209 is an apocalyptic number.

It is an amenable number.

425007209 is a deficient number, since it is larger than the sum of its proper divisors (57130711).

425007209 is a wasteful number, since it uses less digits than its factorization.

425007209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 425007209 is about 20615.7029712790. The cubic root of 425007209 is about 751.8515491115.

The spelling of 425007209 in words is "four hundred twenty-five million, seven thousand, two hundred nine".