25810465450 has 384 divisors, whose sum is σ = 68138496000. Its totient is φ = 7038662400.

The previous prime is 25810465411. The next prime is 25810465453. The reversal of 25810465450 is 5456401852.

It is not an unprimeable number, because it can be changed into a prime (25810465453) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 890016036 + ... + 890016064.

It is an arithmetic number, because the mean of its divisors is an integer number (177444000).

Almost surely, 2^25810465450 is an apocalyptic number.

25810465450 is an abundant number, since it is smaller than the sum of its proper divisors (42328030550).

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

25810465450 is a wasteful number, since it uses less digits than its factorization.

25810465450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 25810465450 in words is "twenty-five billion, eight hundred ten million, four hundred sixty-five thousand, four hundred fifty".