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5551215000000 = 26357370081
BaseRepresentation
bin101000011000111111000…
…1100101011100111000000
3201122200122201101101221120
41100301332030223213000
51211422342020000000
615450105402552240
71112030165645355
oct120617614534700
921580581341846
105551215000000
11185029116953a
12757a42808680
133136288c8867
1415297481262c
15995ee6e96a0
hex50c7e32b9c0

5551215000000 has 224 divisors, whose sum is σ = 18359489718336. Its totient is φ = 1480320000000.

The previous prime is 5551214999989. The next prime is 5551215000007. The reversal of 5551215000000 is 5121555.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551215000007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14814960 + ... + 15185040.

Almost surely, 25551215000000 is an apocalyptic number.

5551215000000 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 5551215000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9179744859168).

5551215000000 is an abundant number, since it is smaller than the sum of its proper divisors (12808274718336).

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

5551215000000 is an frugal number, since it uses more digits than its factorization.

5551215000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370131 (or 370091 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The spelling of 5551215000000 in words is "five trillion, five hundred fifty-one billion, two hundred fifteen million", and thus it is an aban number.