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25062220 = 2251253111
BaseRepresentation
bin101111110011…
…0101101001100
31202011021220101
41133212231030
522403442340
62253100444
7423011461
oct137465514
952137811
1025062220
1113168687
128487724
135266621
143485668
152300c9a
hex17e6b4c

25062220 has 12 divisors (see below), whose sum is σ = 52630704. Its totient is φ = 10024880.

The previous prime is 25062217. The next prime is 25062227. The reversal of 25062220 is 2226052.

It is a super-2 number, since 2×250622202 = 1256229742656800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25062227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626536 + ... + 626575.

It is an arithmetic number, because the mean of its divisors is an integer number (4385892).

Almost surely, 225062220 is an apocalyptic number.

25062220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25062220 is an abundant number, since it is smaller than the sum of its proper divisors (27568484).

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

25062220 is a wasteful number, since it uses less digits than its factorization.

25062220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253120 (or 1253118 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25062220 is about 5006.2181334816. The cubic root of 25062220 is about 292.6441493692.

Adding to 25062220 its reverse (2226052), we get a palindrome (27288272).

The spelling of 25062220 in words is "twenty-five million, sixty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1253111 2506222 5012444 6265555 12531110 25062220