25051930 has 8 divisors (see below), whose sum is σ = 45093492. Its totient is φ = 10020768.

The previous prime is 25051919. The next prime is 25051981. The reversal of 25051930 is 3915052.

It can be written as a sum of positive squares in 2 ways, for example, as 24472809 + 579121 = 4947^2 + 761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25051895 and 25051904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1252587 + ... + 1252606.

Almost surely, 2^25051930 is an apocalyptic number.

25051930 is a deficient number, since it is larger than the sum of its proper divisors (20041562).

25051930 is a wasteful number, since it uses less digits than its factorization.

25051930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505200.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 25051930 is about 5005.1903060723. The cubic root of 25051930 is about 292.6040927884.

Adding to 25051930 its reverse (3915052), we get a palindrome (28966982).

The spelling of 25051930 in words is "twenty-five million, fifty-one thousand, nine hundred thirty".