25150250240 has 36 divisors (see below), whose sum is σ = 60242711844. Its totient is φ = 10060099584.

The previous prime is 25150250231. The next prime is 25150250297. The reversal of 25150250240 is 4205205152.

It can be written as a sum of positive squares in 2 ways, for example, as 13788395776 + 11361854464 = 117424^2 + 106592^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9823037 + ... + 9825596.

Almost surely, 2^25150250240 is an apocalyptic number.

25150250240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25150250240 is an abundant number, since it is smaller than the sum of its proper divisors (35092461604).

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

25150250240 is an equidigital number, since it uses as much as digits as its factorization.

25150250240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19648654 (or 19648640 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 25150250240 its reverse (4205205152), we get a palindrome (29355455392).

The spelling of 25150250240 in words is "twenty-five billion, one hundred fifty million, two hundred fifty thousand, two hundred forty".