25012512054 has 12 divisors (see below), whose sum is σ = 54193776156. Its totient is φ = 8337504012.

The previous prime is 25012511987. The next prime is 25012512071. The reversal of 25012512054 is 45021521052.

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 5 ways as a sum of consecutive naturals, for example, 694791984 + ... + 694792019.

It is an arithmetic number, because the mean of its divisors is an integer number (4516148013).

Almost surely, 2^25012512054 is an apocalyptic number.

25012512054 is an abundant number, since it is smaller than the sum of its proper divisors (29181264102).

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

25012512054 is a wasteful number, since it uses less digits than its factorization.

25012512054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389584011 (or 1389584008 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 25012512054 in words is "twenty-five billion, twelve million, five hundred twelve thousand, fifty-four".