25020032402 has 16 divisors (see below), whose sum is σ = 38887167960. Its totient is φ = 12059042688.

The previous prime is 25020032381. The next prime is 25020032407. The reversal of 25020032402 is 20423002052.

It can be written as a sum of positive squares in 4 ways, for example, as 8049498961 + 16970533441 = 89719^2 + 130271^2 .

It is not an unprimeable number, because it can be changed into a prime (25020032407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313793 + ... + 385364.

Almost surely, 2^25020032402 is an apocalyptic number.

25020032402 is a deficient number, since it is larger than the sum of its proper divisors (13867135558).

25020032402 is a wasteful number, since it uses less digits than its factorization.

25020032402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699805.

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 25020032402 its reverse (20423002052), we get a palindrome (45443034454).

The spelling of 25020032402 in words is "twenty-five billion, twenty million, thirty-two thousand, four hundred two".