25525252752550 has 24 divisors (see below), whose sum is σ = 47481082110000. Its totient is φ = 10209216802080.

The previous prime is 25525252752541. The next prime is 25525252752557. The reversal of 25525252752550 is 5525725252552.

It is a super-2 number, since 2×25525252752550² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525252752557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21524250 + ... + 22679149.

It is an arithmetic number, because the mean of its divisors is an integer number (1978378421250).

Almost surely, 2^{25525252752550} is an apocalyptic number.

25525252752550 is a deficient number, since it is larger than the sum of its proper divisors (21955829357450).

25525252752550 is a wasteful number, since it uses less digits than its factorization.

25525252752550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44214960 (or 44214955 counting only the distinct ones).

The product of its (nonzero) digits is 17500000, while the sum is 52.

The spelling of 25525252752550 in words is "twenty-five trillion, five hundred twenty-five billion, two hundred fifty-two million, seven hundred fifty-two thousand, five hundred fifty".