2051250030 has 96 divisors (see below), whose sum is σ = 5496892128. Its totient is φ = 530323200.

The previous prime is 2051250001. The next prime is 2051250031. The reversal of 2051250030 is 300521502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2051249985 and 2051250012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051250031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1101300 + ... + 1103160.

It is an arithmetic number, because the mean of its divisors is an integer number (57259293).

Almost surely, 2^2051250030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051250030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2748446064).

2051250030 is an abundant number, since it is smaller than the sum of its proper divisors (3445642098).

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

2051250030 is a wasteful number, since it uses less digits than its factorization.

2051250030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2051250030 is about 45290.7278590221. The cubic root of 2051250030 is about 1270.5922444916.

Adding to 2051250030 its reverse (300521502), we get a palindrome (2351771532).

The spelling of 2051250030 in words is "two billion, fifty-one million, two hundred fifty thousand, thirty".