25126263887500 has 72 divisors (see below), whose sum is σ = 55263836981808. Its totient is φ = 9994977000000.

The previous prime is 25126263887497. The next prime is 25126263887503. The reversal of 25126263887500 is 578836262152.

It is an interprime number because it is at equal distance from previous prime (25126263887497) and next prime (25126263887503).

It is a super-2 number, since 2×25126263887500² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25126263887503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3290266 + ... + 7815265.

It is an arithmetic number, because the mean of its divisors is an integer number (767553291414).

Almost surely, 2^{25126263887500} is an apocalyptic number.

25126263887500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25126263887500 is an abundant number, since it is smaller than the sum of its proper divisors (30137573094308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25126263887500 is a wasteful number, since it uses less digits than its factorization.

25126263887500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105741 (or 11105719 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 25126263887500 in words is "twenty-five trillion, one hundred twenty-six billion, two hundred sixty-three million, eight hundred eighty-seven thousand, five hundred".