5278136153550 has 384 divisors, whose sum is σ = 14786413608960. Its totient is φ = 1236974592000.

The previous prime is 5278136153527. The next prime is 5278136153551. The reversal of 5278136153550 is 553516318725.

It is a junction number, because it is equal to n+sod(n) for n = 5278136153493 and 5278136153502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278136153551) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4585695475 + ... + 4585696625.

It is an arithmetic number, because the mean of its divisors is an integer number (38506285440).

Almost surely, 2^{5278136153550} is an apocalyptic number.

5278136153550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5278136153550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7393206804480).

5278136153550 is an abundant number, since it is smaller than the sum of its proper divisors (9508277455410).

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

5278136153550 is a wasteful number, since it uses less digits than its factorization.

5278136153550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 51.

The spelling of 5278136153550 in words is "five trillion, two hundred seventy-eight billion, one hundred thirty-six million, one hundred fifty-three thousand, five hundred fifty".