25542852890 has 32 divisors (see below), whose sum is σ = 46858331520. Its totient is φ = 10022075200.

The previous prime is 25542852877. The next prime is 25542852917. The reversal of 25542852890 is 9825824552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225035 + ... + 318945.

It is an arithmetic number, because the mean of its divisors is an integer number (1464322860).

Almost surely, 2^25542852890 is an apocalyptic number.

25542852890 is a deficient number, since it is larger than the sum of its proper divisors (21315478630).

25542852890 is a wasteful number, since it uses less digits than its factorization.

25542852890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94438.

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 25542852890 in words is "twenty-five billion, five hundred forty-two million, eight hundred fifty-two thousand, eight hundred ninety".