25155211532 has 48 divisors (see below), whose sum is σ = 48523950720. Its totient is φ = 11315673600.

The previous prime is 25155211507. The next prime is 25155211567. The reversal of 25155211532 is 23511255152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1654268 + ... + 1669404.

It is an arithmetic number, because the mean of its divisors is an integer number (1010915640).

Almost surely, 2^25155211532 is an apocalyptic number.

25155211532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25155211532 is a deficient number, since it is larger than the sum of its proper divisors (23368739188).

25155211532 is a wasteful number, since it uses less digits than its factorization.

25155211532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542 (or 15540 counting only the distinct ones).

The product of its digits is 15000, while the sum is 32.

Adding to 25155211532 its reverse (23511255152), we get a palindrome (48666466684).

The spelling of 25155211532 in words is "twenty-five billion, one hundred fifty-five million, two hundred eleven thousand, five hundred thirty-two".