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12252553 = 38331991
BaseRepresentation
bin101110101111…
…010110001001
3212001111100021
4232233112021
511114040203
61114340441
7206100505
oct56572611
925044307
1012252553
116a09585
12412a721
1326ccc41
1418ad305
1511205bd
hexbaf589

12252553 has 4 divisors (see below), whose sum is σ = 12284928. Its totient is φ = 12220180.

The previous prime is 12252551. The next prime is 12252599. The reversal of 12252553 is 35525221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35525221 = 85741453.

It is a cyclic number.

It is not a de Polignac number, because 12252553 - 21 = 12252551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12252551) 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, 15613 + ... + 16378.

It is an arithmetic number, because the mean of its divisors is an integer number (3071232).

Almost surely, 212252553 is an apocalyptic number.

It is an amenable number.

12252553 is a deficient number, since it is larger than the sum of its proper divisors (32375).

12252553 is an equidigital number, since it uses as much as digits as its factorization.

12252553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32374.

The product of its digits is 3000, while the sum is 25.

The square root of 12252553 is about 3500.3646952853. The cubic root of 12252553 is about 230.5378276999.

Adding to 12252553 its reverse (35525221), we get a palindrome (47777774).

The spelling of 12252553 in words is "twelve million, two hundred fifty-two thousand, five hundred fifty-three".

Divisors: 1 383 31991 12252553