2551101000 has 512 divisors, whose sum is σ = 9704448000. Its totient is φ = 545664000.

The previous prime is 2551100983. The next prime is 2551101023. The reversal of 2551101000 is 1011552.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35930965 + ... + 35931035.

It is an arithmetic number, because the mean of its divisors is an integer number (18954000).

Almost surely, 2^2551101000 is an apocalyptic number.

2551101000 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 2551101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4852224000).

2551101000 is an abundant number, since it is smaller than the sum of its proper divisors (7153347000).

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

2551101000 is a wasteful number, since it uses less digits than its factorization.

2551101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2551101000 is about 50508.4250397892. The cubic root of 2551101000 is about 1366.3938050006.

Adding to 2551101000 its reverse (1011552), we get a palindrome (2552112552).

The spelling of 2551101000 in words is "two billion, five hundred fifty-one million, one hundred one thousand".