25705234 has 4 divisors (see below), whose sum is σ = 38557854. Its totient is φ = 12852616.

The previous prime is 25705219. The next prime is 25705249. The reversal of 25705234 is 43250752.

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

It is an interprime number because it is at equal distance from previous prime (25705219) and next prime (25705249).

It can be written as a sum of positive squares in only one way, i.e., 16687225 + 9018009 = 4085^2 + 3003^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6426307 + ... + 6426310.

Almost surely, 2^25705234 is an apocalyptic number.

25705234 is a deficient number, since it is larger than the sum of its proper divisors (12852620).

25705234 is a wasteful number, since it uses less digits than its factorization.

25705234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12852619.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25705234 is about 5070.0329387490. The cubic root of 25705234 is about 295.1258067253.

Adding to 25705234 its reverse (43250752), we get a palindrome (68955986).

The spelling of 25705234 in words is "twenty-five million, seven hundred five thousand, two hundred thirty-four".