402512325 has 48 divisors (see below), whose sum is σ = 677040000. Its totient is φ = 210988800.

The previous prime is 402512323. The next prime is 402512387. The reversal of 402512325 is 523215204.

It is not a de Polignac number, because 402512325 - 2¹ = 402512323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402512295 and 402512304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402512323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2022576 + ... + 2022774.

It is an arithmetic number, because the mean of its divisors is an integer number (14105000).

Almost surely, 2^402512325 is an apocalyptic number.

It is an amenable number.

402512325 is a deficient number, since it is larger than the sum of its proper divisors (274527675).

402512325 is a wasteful number, since it uses less digits than its factorization.

402512325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 402512325 is about 20062.7098119870. The cubic root of 402512325 is about 738.3456621358.

Adding to 402512325 its reverse (523215204), we get a palindrome (925727529).

The spelling of 402512325 in words is "four hundred two million, five hundred twelve thousand, three hundred twenty-five".