25051625 has 16 divisors (see below), whose sum is σ = 33106320. Its totient is φ = 18860800.

The previous prime is 25051613. The next prime is 25051643. The reversal of 25051625 is 52615052.

It can be written as a sum of positive squares in 8 ways, for example, as 12033961 + 13017664 = 3469^2 + 3608^2 .

It is not a de Polignac number, because 25051625 - 2⁶ = 25051561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25051594 and 25051603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3770 + ... + 8019.

It is an arithmetic number, because the mean of its divisors is an integer number (2069145).

Almost surely, 2^25051625 is an apocalyptic number.

25051625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25051625 is a deficient number, since it is larger than the sum of its proper divisors (8054695).

25051625 is a wasteful number, since it uses less digits than its factorization.

25051625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11821 (or 11811 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 25051625 is about 5005.1598376076. The cubic root of 25051625 is about 292.6029053269.

Adding to 25051625 its reverse (52615052), we get a palindrome (77666677).

The spelling of 25051625 in words is "twenty-five million, fifty-one thousand, six hundred twenty-five".