2051002530 has 48 divisors (see below), whose sum is σ = 5350048704. Its totient is φ = 545145120.

The previous prime is 2051002511. The next prime is 2051002531. The reversal of 2051002530 is 352001502.

It is a happy number.

It is a super-2 number, since 2×2051002530² = 8413222756132801800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2051002531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9486 + ... + 64745.

It is an arithmetic number, because the mean of its divisors is an integer number (111459348).

Almost surely, 2^2051002530 is an apocalyptic number.

2051002530 is an abundant number, since it is smaller than the sum of its proper divisors (3299046174).

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

2051002530 is a wasteful number, since it uses less digits than its factorization.

2051002530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74551 (or 74548 counting only the distinct ones).

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

The square root of 2051002530 is about 45287.9954292526. The cubic root of 2051002530 is about 1270.5411400065.

The spelling of 2051002530 in words is "two billion, fifty-one million, two thousand, five hundred thirty".