25435227480 has 128 divisors (see below), whose sum is σ = 83023012800. Its totient is φ = 6196396032.

The previous prime is 25435227469. The next prime is 25435227529. The reversal of 25435227480 is 8472253452.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 67276 + ... + 235364.

Almost surely, 2^25435227480 is an apocalyptic number.

25435227480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25435227480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41511506400).

25435227480 is an abundant number, since it is smaller than the sum of its proper divisors (57587785320).

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

25435227480 is a wasteful number, since it uses less digits than its factorization.

25435227480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168213 (or 168209 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 25435227480 in words is "twenty-five billion, four hundred thirty-five million, two hundred twenty-seven thousand, four hundred eighty".