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25133423 = 72512927
BaseRepresentation
bin101111111100…
…0000101101111
31202021220120112
41133320011233
522413232143
62254410235
7423426200
oct137700557
952256515
1025133423
1113207127
12850097b
13528cb63
1434a35a7
152316e18
hex17f816f

25133423 has 6 divisors (see below), whose sum is σ = 29236896. Its totient is φ = 21542892.

The previous prime is 25133399. The next prime is 25133431. The reversal of 25133423 is 32433152.

It is not a de Polignac number, because 25133423 - 214 = 25117039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25133443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256415 + ... + 256512.

It is an arithmetic number, because the mean of its divisors is an integer number (4872816).

Almost surely, 225133423 is an apocalyptic number.

25133423 is a deficient number, since it is larger than the sum of its proper divisors (4103473).

25133423 is an equidigital number, since it uses as much as digits as its factorization.

25133423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512941 (or 512934 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 25133423 is about 5013.3245456483. The cubic root of 25133423 is about 292.9210261361.

Adding to 25133423 its reverse (32433152), we get a palindrome (57566575).

The spelling of 25133423 in words is "twenty-five million, one hundred thirty-three thousand, four hundred twenty-three".

Divisors: 1 7 49 512927 3590489 25133423