25402634302020 has 48 divisors (see below), whose sum is σ = 71148923821248. Its totient is φ = 6771983644800.

The previous prime is 25402634301959. The next prime is 25402634302027. The reversal of 25402634302020 is 2020343620452.

It is not an unprimeable number, because it can be changed into a prime (25402634302027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63930574 + ... + 64326693.

It is an arithmetic number, because the mean of its divisors is an integer number (1482269246276).

Almost surely, 2^{25402634302020} is an apocalyptic number.

25402634302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25402634302020 is an abundant number, since it is smaller than the sum of its proper divisors (45746289519228).

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

25402634302020 is a wasteful number, since it uses less digits than its factorization.

25402634302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128260580 (or 128260578 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 25402634302020 its reverse (2020343620452), we get a palindrome (27422977922472).

The spelling of 25402634302020 in words is "twenty-five trillion, four hundred two billion, six hundred thirty-four million, three hundred two thousand, twenty".