25512525140137 has 16 divisors (see below), whose sum is σ = 29246559967872. Its totient is φ = 21800843285760.

The previous prime is 25512525140131. The next prime is 25512525140143. The reversal of 25512525140137 is 73104152521552.

It is an interprime number because it is at equal distance from previous prime (25512525140131) and next prime (25512525140143).

It is not a de Polignac number, because 25512525140137 - 2¹⁵ = 25512525107369 is a prime.

It is a super-2 number, since 2×25512525140137² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25512525140093 and 25512525140102.

It is not an unprimeable number, because it can be changed into a prime (25512525140131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54524703 + ... + 54990619.

It is an arithmetic number, because the mean of its divisors is an integer number (1827909997992).

Almost surely, 2^{25512525140137} is an apocalyptic number.

It is an amenable number.

25512525140137 is a deficient number, since it is larger than the sum of its proper divisors (3734034827735).

25512525140137 is a wasteful number, since it uses less digits than its factorization.

25512525140137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489888.

The product of its (nonzero) digits is 420000, while the sum is 43.

Adding to 25512525140137 its reverse (73104152521552), we get a palindrome (98616677661689).

The spelling of 25512525140137 in words is "twenty-five trillion, five hundred twelve billion, five hundred twenty-five million, one hundred forty thousand, one hundred thirty-seven".