25005003320 has 48 divisors (see below), whose sum is σ = 61840898280. Its totient is φ = 9092726720.

The previous prime is 25005003313. The next prime is 25005003323. The reversal of 25005003320 is 2330050052.

It is a super-2 number, since 2×25005003320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25005003292 and 25005003301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25005003323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2578322 + ... + 2588001.

Almost surely, 2^25005003320 is an apocalyptic number.

25005003320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25005003320 is an abundant number, since it is smaller than the sum of its proper divisors (36835894960).

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

25005003320 is a wasteful number, since it uses less digits than its factorization.

25005003320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166356 (or 5166341 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

Adding to 25005003320 its reverse (2330050052), we get a palindrome (27335053372).

The spelling of 25005003320 in words is "twenty-five billion, five million, three thousand, three hundred twenty".