1551251253200 has 240 divisors, whose sum is σ = 4339965795840. Its totient is φ = 526873536000.

The previous prime is 1551251253173. The next prime is 1551251253229. The reversal of 1551251253200 is 23521521551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5804927 + ... + 6066273.

It is an arithmetic number, because the mean of its divisors is an integer number (18083190816).

Almost surely, 2^{1551251253200} is an apocalyptic number.

1551251253200 is a gapful number since it is divisible by the number (10) 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 1551251253200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169982897920).

1551251253200 is an abundant number, since it is smaller than the sum of its proper divisors (2788714542640).

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

1551251253200 is a wasteful number, since it uses less digits than its factorization.

1551251253200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261466 (or 261455 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 1551251253200 its reverse (23521521551), we get a palindrome (1574772774751).

The spelling of 1551251253200 in words is "one trillion, five hundred fifty-one billion, two hundred fifty-one million, two hundred fifty-three thousand, two hundred".