5551551251400 has 384 divisors, whose sum is σ = 21486774758400. Its totient is φ = 1151935257600.

The previous prime is 5551551251377. The next prime is 5551551251437. The reversal of 5551551251400 is 41521551555.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32671059 + ... + 32840541.

It is an arithmetic number, because the mean of its divisors is an integer number (55955142600).

Almost surely, 2^{5551551251400} is an apocalyptic number.

5551551251400 is a gapful number since it is divisible by the number (50) 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 5551551251400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10743387379200).

5551551251400 is an abundant number, since it is smaller than the sum of its proper divisors (15935223507000).

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

5551551251400 is a wasteful number, since it uses less digits than its factorization.

5551551251400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170229 (or 170220 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 39.

The spelling of 5551551251400 in words is "five trillion, five hundred fifty-one billion, five hundred fifty-one million, two hundred fifty-one thousand, four hundred".