25420565162 has 8 divisors (see below), whose sum is σ = 39017611776. Its totient is φ = 12414694572.

The previous prime is 25420565143. The next prime is 25420565173. The reversal of 25420565162 is 26156502452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 147793898 + ... + 147794069.

It is an arithmetic number, because the mean of its divisors is an integer number (4877201472).

Almost surely, 2^25420565162 is an apocalyptic number.

25420565162 is a deficient number, since it is larger than the sum of its proper divisors (13597046614).

25420565162 is a wasteful number, since it uses less digits than its factorization.

25420565162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295588012.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 25420565162 in words is "twenty-five billion, four hundred twenty million, five hundred sixty-five thousand, one hundred sixty-two".