25113620 has 24 divisors (see below), whose sum is σ = 60273024. Its totient is φ = 8610336.

The previous prime is 25113619. The next prime is 25113629. The reversal of 25113620 is 2631152.

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 = 25113592 and 25113601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25113629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89552 + ... + 89831.

It is an arithmetic number, because the mean of its divisors is an integer number (2511376).

Almost surely, 2^25113620 is an apocalyptic number.

25113620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25113620 is an abundant number, since it is smaller than the sum of its proper divisors (35159404).

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

25113620 is a wasteful number, since it uses less digits than its factorization.

25113620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179399 (or 179397 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 25113620 is about 5011.3491197481. The cubic root of 25113620 is about 292.8440736356.

Adding to 25113620 its reverse (2631152), we get a palindrome (27744772).

The spelling of 25113620 in words is "twenty-five million, one hundred thirteen thousand, six hundred twenty".