25380394248 has 128 divisors (see below), whose sum is σ = 70170624000. Its totient is φ = 7586046720.

The previous prime is 25380394219. The next prime is 25380394271. The reversal of 25380394248 is 84249308352.

It is a super-2 number, since 2×25380394248² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25380394197 and 25380394206.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5999398 + ... + 6003626.

It is an arithmetic number, because the mean of its divisors is an integer number (548208000).

Almost surely, 2^25380394248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25380394248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35085312000).

25380394248 is an abundant number, since it is smaller than the sum of its proper divisors (44790229752).

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

25380394248 is a wasteful number, since it uses less digits than its factorization.

25380394248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555 (or 4551 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 25380394248 in words is "twenty-five billion, three hundred eighty million, three hundred ninety-four thousand, two hundred forty-eight".