25487050242 has 16 divisors (see below), whose sum is σ = 51042715200. Its totient is φ = 8484247632.

The previous prime is 25487050219. The next prime is 25487050297. The reversal of 25487050242 is 24205078452.

It is a self number, because there is not a number n which added to its sum of digits gives 25487050242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2854117 + ... + 2863032.

It is an arithmetic number, because the mean of its divisors is an integer number (3190169700).

Almost surely, 2^25487050242 is an apocalyptic number.

25487050242 is an abundant number, since it is smaller than the sum of its proper divisors (25555664958).

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

25487050242 is a wasteful number, since it uses less digits than its factorization.

25487050242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717897.

The product of its (nonzero) digits is 179200, while the sum is 39.

The spelling of 25487050242 in words is "twenty-five billion, four hundred eighty-seven million, fifty thousand, two hundred forty-two".