25212150155042 has 24 divisors (see below), whose sum is σ = 40043429251056. Its totient is φ = 11903696368344.

The previous prime is 25212150154999. The next prime is 25212150155057. The reversal of 25212150155042 is 24055105121252.

It is a junction number, because it is equal to n+sod(n) for n = 25212150154993 and 25212150155011.

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 11 ways as a sum of consecutive naturals, for example, 56651108 + ... + 57094415.

It is an arithmetic number, because the mean of its divisors is an integer number (1668476218794).

Almost surely, 2^{25212150155042} is an apocalyptic number.

25212150155042 is a deficient number, since it is larger than the sum of its proper divisors (14831279096014).

25212150155042 is a wasteful number, since it uses less digits than its factorization.

25212150155042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113745870 (or 113745851 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

Adding to 25212150155042 its reverse (24055105121252), we get a palindrome (49267255276294).

The spelling of 25212150155042 in words is "twenty-five trillion, two hundred twelve billion, one hundred fifty million, one hundred fifty-five thousand, forty-two".