25250525 has 48 divisors (see below), whose sum is σ = 36158400. Its totient is φ = 17372160.

The previous prime is 25250501. The next prime is 25250531. The reversal of 25250525 is 52505252.

It is not a de Polignac number, because 25250525 - 2¹⁰ = 25249501 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25250494 and 25250503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 427946 + ... + 428004.

It is an arithmetic number, because the mean of its divisors is an integer number (753300).

Almost surely, 2^25250525 is an apocalyptic number.

25250525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25250525 is a deficient number, since it is larger than the sum of its proper divisors (10907875).

25250525 is a wasteful number, since it uses less digits than its factorization.

25250525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 25250525 is about 5024.9900497414. The cubic root of 25250525 is about 293.3752486877.

Adding to 25250525 its reverse (52505252), we get a palindrome (77755777).

The spelling of 25250525 in words is "twenty-five million, two hundred fifty thousand, five hundred twenty-five".