25438424006 has 16 divisors (see below), whose sum is σ = 39292985088. Its totient is φ = 12344011200.

The previous prime is 25438423991. The next prime is 25438424027. The reversal of 25438424006 is 60042483452.

It is a happy number.

It is a super-2 number, since 2×25438424006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 796445 + ... + 827768.

It is an arithmetic number, because the mean of its divisors is an integer number (2455811568).

Almost surely, 2^25438424006 is an apocalyptic number.

25438424006 is a deficient number, since it is larger than the sum of its proper divisors (13854561082).

25438424006 is a wasteful number, since it uses less digits than its factorization.

25438424006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624447.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 25438424006 in words is "twenty-five billion, four hundred thirty-eight million, four hundred twenty-four thousand, six".