25020054534 has 32 divisors (see below), whose sum is σ = 52323125760. Its totient is φ = 7961006592.

The previous prime is 25020054517. The next prime is 25020054547. The reversal of 25020054534 is 43545002052.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 118939 + ... + 253350.

It is an arithmetic number, because the mean of its divisors is an integer number (1635097680).

Almost surely, 2^25020054534 is an apocalyptic number.

25020054534 is an abundant number, since it is smaller than the sum of its proper divisors (27303071226).

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

25020054534 is a wasteful number, since it uses less digits than its factorization.

25020054534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372804.

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 25020054534 its reverse (43545002052), we get a palindrome (68565056586).

The spelling of 25020054534 in words is "twenty-five billion, twenty million, fifty-four thousand, five hundred thirty-four".