25250530 has 8 divisors (see below), whose sum is σ = 45450972. Its totient is φ = 10100208.

The previous prime is 25250501. The next prime is 25250531. The reversal of 25250530 is 3505252.

It can be written as a sum of positive squares in 2 ways, for example, as 24216241 + 1034289 = 4921^2 + 1017^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25250531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262517 + ... + 1262536.

Almost surely, 2^25250530 is an apocalyptic number.

25250530 is a deficient number, since it is larger than the sum of its proper divisors (20200442).

25250530 is a wasteful number, since it uses less digits than its factorization.

25250530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525060.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 25250530 is about 5024.9905472548. The cubic root of 25250530 is about 293.3752680520.

Adding to 25250530 its reverse (3505252), we get a palindrome (28755782).

The spelling of 25250530 in words is "twenty-five million, two hundred fifty thousand, five hundred thirty".