2251010028 has 96 divisors (see below), whose sum is σ = 5620608000. Its totient is φ = 699148800.

The previous prime is 2251009997. The next prime is 2251010029. The reversal of 2251010028 is 8200101522.

It is a happy number.

It is a super-2 number, since 2×2251010028² = 10134092292313121568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2251009986 and 2251010013.

It is not an unprimeable number, because it can be changed into a prime (2251010029) 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, 5503488 + ... + 5503896.

It is an arithmetic number, because the mean of its divisors is an integer number (58548000).

Almost surely, 2^2251010028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251010028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2810304000).

2251010028 is an abundant number, since it is smaller than the sum of its proper divisors (3369597972).

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

2251010028 is a wasteful number, since it uses less digits than its factorization.

2251010028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 2251010028 is about 47444.8103379073. The cubic root of 2251010028 is about 1310.5667434899.

It can be divided in two parts, 22 and 51010028, that added together give a triangular number (51010050 = T₁₀₁₀₀).

The spelling of 2251010028 in words is "two billion, two hundred fifty-one million, ten thousand, twenty-eight".