25267435050 has 576 divisors, whose sum is σ = 79469199360. Its totient is φ = 5256576000.

The previous prime is 25267435033. The next prime is 25267435097. The reversal of 25267435050 is 5053476252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 319840911 + ... + 319840989.

It is an arithmetic number, because the mean of its divisors is an integer number (137967360).

Almost surely, 2^25267435050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25267435050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39734599680).

25267435050 is an abundant number, since it is smaller than the sum of its proper divisors (54201764310).

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

25267435050 is a wasteful number, since it uses less digits than its factorization.

25267435050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 25267435050 in words is "twenty-five billion, two hundred sixty-seven million, four hundred thirty-five thousand, fifty".