25402522013430 has 64 divisors (see below), whose sum is σ = 64558233558720. Its totient is φ = 6374948040704.

The previous prime is 25402522013383. The next prime is 25402522013437. The reversal of 25402522013430 is 3431022520452.

It is a super-2 number, since 2×25402522013430² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25402522013391 and 25402522013400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25402522013437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3266272 + ... + 7840508.

It is an arithmetic number, because the mean of its divisors is an integer number (1008722399355).

Almost surely, 2^{25402522013430} is an apocalyptic number.

25402522013430 is an abundant number, since it is smaller than the sum of its proper divisors (39155711545290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25402522013430 is a wasteful number, since it uses less digits than its factorization.

25402522013430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585153.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 25402522013430 its reverse (3431022520452), we get a palindrome (28833544533882).

The spelling of 25402522013430 in words is "twenty-five trillion, four hundred two billion, five hundred twenty-two million, thirteen thousand, four hundred thirty".