25206151242 has 16 divisors (see below), whose sum is σ = 50440315392. Its totient is φ = 8397381600.

The previous prime is 25206151231. The next prime is 25206151253. The reversal of 25206151242 is 24215160252.

It is an interprime number because it is at equal distance from previous prime (25206151231) and next prime (25206151253).

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 7 ways as a sum of consecutive naturals, for example, 1155498 + ... + 1177109.

It is an arithmetic number, because the mean of its divisors is an integer number (3152519712).

Almost surely, 2^25206151242 is an apocalyptic number.

25206151242 is an abundant number, since it is smaller than the sum of its proper divisors (25234164150).

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

25206151242 is a wasteful number, since it uses less digits than its factorization.

25206151242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334413.

The product of its (nonzero) digits is 9600, while the sum is 30.

It can be divided in two parts, 252061 and 51242, that added together give a palindrome (303303).

The spelling of 25206151242 in words is "twenty-five billion, two hundred six million, one hundred fifty-one thousand, two hundred forty-two".