25542104156 has 6 divisors (see below), whose sum is σ = 44698682280. Its totient is φ = 12771052076.

The previous prime is 25542104153. The next prime is 25542104171. The reversal of 25542104156 is 65140124552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25542104153) 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 as a sum of consecutive naturals, namely, 3192763016 + ... + 3192763023.

It is an arithmetic number, because the mean of its divisors is an integer number (7449780380).

Almost surely, 2^25542104156 is an apocalyptic number.

It is an amenable number.

25542104156 is a deficient number, since it is larger than the sum of its proper divisors (19156578124).

25542104156 is a wasteful number, since it uses less digits than its factorization.

25542104156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385526043 (or 6385526041 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 25542104156 in words is "twenty-five billion, five hundred forty-two million, one hundred four thousand, one hundred fifty-six".