25420689330 has 32 divisors (see below), whose sum is σ = 61051235328. Its totient is φ = 6774230400.

The previous prime is 25420689317. The next prime is 25420689341. The reversal of 25420689330 is 3398602452.

It is a super-2 number, since 2×25420689330² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243891 + ... + 332150.

It is an arithmetic number, because the mean of its divisors is an integer number (1907851104).

Almost surely, 2^25420689330 is an apocalyptic number.

25420689330 is an abundant number, since it is smaller than the sum of its proper divisors (35630545998).

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

25420689330 is a wasteful number, since it uses less digits than its factorization.

25420689330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577522.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 25420689330 in words is "twenty-five billion, four hundred twenty million, six hundred eighty-nine thousand, three hundred thirty".