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25152823 = 234572393
BaseRepresentation
bin101111111110…
…0110100110111
31202022220012001
41133330310313
522414342243
62255040131
7423536563
oct137746467
952286161
1025152823
111321a763
128510047
135298937
1434aa6a3
15231ca4d
hex17fcd37

25152823 has 8 divisors (see below), whose sum is σ = 26314848. Its totient is φ = 23996544.

The previous prime is 25152797. The next prime is 25152857. The reversal of 25152823 is 32825152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25152823 - 25 = 25152791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25152791 and 25152800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25152863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9315 + ... + 11707.

It is an arithmetic number, because the mean of its divisors is an integer number (3289356).

Almost surely, 225152823 is an apocalyptic number.

25152823 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25152823 is a deficient number, since it is larger than the sum of its proper divisors (1162025).

25152823 is a wasteful number, since it uses less digits than its factorization.

25152823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873.

The product of its digits is 4800, while the sum is 28.

The square root of 25152823 is about 5015.2590162423. The cubic root of 25152823 is about 292.9963734326.

Adding to 25152823 its reverse (32825152), we get a palindrome (57977975).

The spelling of 25152823 in words is "twenty-five million, one hundred fifty-two thousand, eight hundred twenty-three".

Divisors: 1 23 457 2393 10511 55039 1093601 25152823