25050520 has 96 divisors (see below), whose sum is σ = 65648880. Its totient is φ = 8529920.

The previous prime is 25050491. The next prime is 25050523. The reversal of 25050520 is 2505052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25050523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127062 + ... + 127258.

Almost surely, 2^25050520 is an apocalyptic number.

25050520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

25050520 is the 2890-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25050520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32824440).

25050520 is an abundant number, since it is smaller than the sum of its proper divisors (40598360).

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

25050520 is a wasteful number, since it uses less digits than its factorization.

25050520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 25050520 is about 5005.0494503052. The cubic root of 25050520 is about 292.5986031314.

Adding to 25050520 its reverse (2505052), we get a palindrome (27555572).

The spelling of 25050520 in words is "twenty-five million, fifty thousand, five hundred twenty".