25142344500 has 384 divisors, whose sum is σ = 92050882560. Its totient is φ = 5190566400.

The previous prime is 25142344489. The next prime is 25142344573. The reversal of 25142344500 is 544324152.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6413541 + ... + 6417459.

It is an arithmetic number, because the mean of its divisors is an integer number (239715840).

Almost surely, 2^25142344500 is an apocalyptic number.

25142344500 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 25142344500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46025441280).

25142344500 is an abundant number, since it is smaller than the sum of its proper divisors (66908538060).

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

25142344500 is a wasteful number, since it uses less digits than its factorization.

25142344500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 3996 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 25142344500 its reverse (544324152), we get a palindrome (25686668652).

The spelling of 25142344500 in words is "twenty-five billion, one hundred forty-two million, three hundred forty-four thousand, five hundred".