25010220 has 48 divisors (see below), whose sum is σ = 70368480. Its totient is φ = 6637056.

The previous prime is 25010207. The next prime is 25010233. The reversal of 25010220 is 2201052.

It is an interprime number because it is at equal distance from previous prime (25010207) and next prime (25010233).

It is a super-2 number, since 2×25010220² = 1251022208896800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 25010196 and 25010205.

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, 13086 + ... + 14874.

It is an arithmetic number, because the mean of its divisors is an integer number (1466010).

Almost surely, 2^25010220 is an apocalyptic number.

25010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25010220 is an abundant number, since it is smaller than the sum of its proper divisors (45358260).

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

25010220 is a wasteful number, since it uses less digits than its factorization.

25010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 25010220 is about 5001.0218955729. The cubic root of 25010220 is about 292.4416130081.

Adding to 25010220 its reverse (2201052), we get a palindrome (27211272).

The spelling of 25010220 in words is "twenty-five million, ten thousand, two hundred twenty".