425402025 has 24 divisors (see below), whose sum is σ = 712975200. Its totient is φ = 223770240.

The previous prime is 425402011. The next prime is 425402059. The reversal of 425402025 is 520204524.

It is a happy number.

It is not a de Polignac number, because 425402025 - 2⁵ = 425401993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 425401986 and 425402004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33375 + ... + 44324.

It is an arithmetic number, because the mean of its divisors is an integer number (29707300).

Almost surely, 2^425402025 is an apocalyptic number.

It is an amenable number.

425402025 is a deficient number, since it is larger than the sum of its proper divisors (287573175).

425402025 is a wasteful number, since it uses less digits than its factorization.

425402025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77785 (or 77780 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 425402025 is about 20625.2763617848. The cubic root of 425402025 is about 752.0842911636.

Adding to 425402025 its reverse (520204524), we get a palindrome (945606549).

The spelling of 425402025 in words is "four hundred twenty-five million, four hundred two thousand, twenty-five".