Search a number
-
+
25051241 = 43582587
BaseRepresentation
bin101111110010…
…0000001101001
31202010201211202
41133210001221
522403114431
62252533545
7422634455
oct137440151
952121752
1025051241
1113160406
1284812b5
135261627
143481665
1522ec8cb
hex17e4069

25051241 has 4 divisors (see below), whose sum is σ = 25633872. Its totient is φ = 24468612.

The previous prime is 25051219. The next prime is 25051277. The reversal of 25051241 is 14215052.

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.

It is a cyclic number.

It is not a de Polignac number, because 25051241 - 210 = 25050217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25050241) 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, 291251 + ... + 291336.

It is an arithmetic number, because the mean of its divisors is an integer number (6408468).

Almost surely, 225051241 is an apocalyptic number.

It is an amenable number.

25051241 is a deficient number, since it is larger than the sum of its proper divisors (582631).

25051241 is an equidigital number, since it uses as much as digits as its factorization.

25051241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582630.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 25051241 is about 5005.1214770473. The cubic root of 25051241 is about 292.6014102796.

Adding to 25051241 its reverse (14215052), we get a palindrome (39266293).

The spelling of 25051241 in words is "twenty-five million, fifty-one thousand, two hundred forty-one".

Divisors: 1 43 582587 25051241