2542222500 has 240 divisors, whose sum is σ = 7960651776. Its totient is φ = 628992000.

The previous prime is 2542222493. The next prime is 2542222511. The reversal of 2542222500 is 52222452.

It is a happy number.

2542222500 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 16192422 + ... + 16192578.

Almost surely, 2^2542222500 is an apocalyptic number.

2542222500 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 2542222500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3980325888).

2542222500 is an abundant number, since it is smaller than the sum of its proper divisors (5418429276).

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

2542222500 is a wasteful number, since it uses less digits than its factorization.

2542222500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2542222500 is about 50420.4571577847. The cubic root of 2542222500 is about 1364.8068263715.

Adding to 2542222500 its reverse (52222452), we get a palindrome (2594444952).

The spelling of 2542222500 in words is "two billion, five hundred forty-two million, two hundred twenty-two thousand, five hundred".