25120541534 has 48 divisors (see below), whose sum is σ = 43029947520. Its totient is φ = 10907072880.

The previous prime is 25120541531. The next prime is 25120541543. The reversal of 25120541534 is 43514502152.

It is a super-2 number, since 2×25120541534² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25120541534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25120541531) 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, 15908357 + ... + 15909935.

It is an arithmetic number, because the mean of its divisors is an integer number (896457240).

Almost surely, 2^25120541534 is an apocalyptic number.

25120541534 is a deficient number, since it is larger than the sum of its proper divisors (17909405986).

25120541534 is a wasteful number, since it uses less digits than its factorization.

25120541534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 25120541534 in words is "twenty-five billion, one hundred twenty million, five hundred forty-one thousand, five hundred thirty-four".