25555175214420 has 96 divisors (see below), whose sum is σ = 75082682142720. Its totient is φ = 6482005678720.

The previous prime is 25555175214419. The next prime is 25555175214421. The reversal of 25555175214420 is 2441257155552.

It is an interprime number because it is at equal distance from previous prime (25555175214419) and next prime (25555175214421).

It is a super-3 number, since 3×25555175214420³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25555175214420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555175214421) 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, 51479916 + ... + 51973955.

It is an arithmetic number, because the mean of its divisors is an integer number (782111272320).

Almost surely, 2^{25555175214420} is an apocalyptic number.

25555175214420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25555175214420 is an abundant number, since it is smaller than the sum of its proper divisors (49527506928300).

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

25555175214420 is a wasteful number, since it uses less digits than its factorization.

25555175214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103454085 (or 103454083 counting only the distinct ones).

The product of its (nonzero) digits is 2800000, while the sum is 48.

The spelling of 25555175214420 in words is "twenty-five trillion, five hundred fifty-five billion, one hundred seventy-five million, two hundred fourteen thousand, four hundred twenty".