425499999 has 4 divisors (see below), whose sum is σ = 567333336. Its totient is φ = 283666664.

The previous prime is 425499983. The next prime is 425500013. The reversal of 425499999 is 999994524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425499999 - 2⁴ = 425499983 is a prime.

425499999 is a modest number, since divided by 99999 gives 4254 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425499929) 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, 70916664 + ... + 70916669.

It is an arithmetic number, because the mean of its divisors is an integer number (141833334).

Almost surely, 2^425499999 is an apocalyptic number.

425499999 is a deficient number, since it is larger than the sum of its proper divisors (141833337).

425499999 is a wasteful number, since it uses less digits than its factorization.

425499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141833336.

The product of its digits is 9447840, while the sum is 60.

The square root of 425499999 is about 20627.6513204970. The cubic root of 425499999 is about 752.1420240421.

The spelling of 425499999 in words is "four hundred twenty-five million, four hundred ninety-nine thousand, nine hundred ninety-nine".