25309034 has 4 divisors (see below), whose sum is σ = 37963554. Its totient is φ = 12654516.

The previous prime is 25309003. The next prime is 25309043. The reversal of 25309034 is 43090352.

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., 15976009 + 9333025 = 3997^2 + 3055^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25308994 and 25309012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327257 + ... + 6327260.

Almost surely, 2^25309034 is an apocalyptic number.

25309034 is a deficient number, since it is larger than the sum of its proper divisors (12654520).

25309034 is a wasteful number, since it uses less digits than its factorization.

25309034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654519.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25309034 is about 5030.8084837330. The cubic root of 25309034 is about 293.6016710624.

Adding to 25309034 its reverse (43090352), we get a palindrome (68399386).

The spelling of 25309034 in words is "twenty-five million, three hundred nine thousand, thirty-four".