25530537814 has 16 divisors (see below), whose sum is σ = 40638834000. Its totient is φ = 11987605504.

The previous prime is 25530537811. The next prime is 25530537821. The reversal of 25530537814 is 41873503552.

It is a super-2 number, since 2×25530537814² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530537811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820924 + ... + 851455.

It is an arithmetic number, because the mean of its divisors is an integer number (2539927125).

Almost surely, 2^25530537814 is an apocalyptic number.

25530537814 is a deficient number, since it is larger than the sum of its proper divisors (15108296186).

25530537814 is a wasteful number, since it uses less digits than its factorization.

25530537814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672847.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 25530537814 in words is "twenty-five billion, five hundred thirty million, five hundred thirty-seven thousand, eight hundred fourteen".