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25263242 = 212631621
BaseRepresentation
bin110000001011…
…1110010001010
31202112111122122
41200113302022
522431410432
62301251242
7424506524
oct140276212
952474578
1025263242
1113295714
128563b22
135306c84
1434d8a14
152340612
hex1817c8a

25263242 has 4 divisors (see below), whose sum is σ = 37894866. Its totient is φ = 12631620.

The previous prime is 25263229. The next prime is 25263253. The reversal of 25263242 is 24236252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20151121 + 5112121 = 4489^2 + 2261^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315809 + ... + 6315812.

Almost surely, 225263242 is an apocalyptic number.

25263242 is a deficient number, since it is larger than the sum of its proper divisors (12631624).

25263242 is a wasteful number, since it uses less digits than its factorization.

25263242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631623.

The product of its digits is 5760, while the sum is 26.

The square root of 25263242 is about 5026.2552661002. The cubic root of 25263242 is about 293.4244915832.

Adding to 25263242 its reverse (24236252), we get a palindrome (49499494).

The spelling of 25263242 in words is "twenty-five million, two hundred sixty-three thousand, two hundred forty-two".

Divisors: 1 2 12631621 25263242