2251520252 has 24 divisors (see below), whose sum is σ = 3954609120. Its totient is φ = 1121641920.

The previous prime is 2251520233. The next prime is 2251520279. The reversal of 2251520252 is 2520251522.

It is a super-2 number, since 2×2251520252² = 10138686890332287008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2327873 + ... + 2328839.

It is an arithmetic number, because the mean of its divisors is an integer number (164775380).

Almost surely, 2^2251520252 is an apocalyptic number.

It is an amenable number.

2251520252 is a deficient number, since it is larger than the sum of its proper divisors (1703088868).

2251520252 is a wasteful number, since it uses less digits than its factorization.

2251520252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2499 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2251520252 is about 47450.1870596945. The cubic root of 2251520252 is about 1310.6657556492.

Adding to 2251520252 its reverse (2520251522), we get a palindrome (4771771774).

The spelling of 2251520252 in words is "two billion, two hundred fifty-one million, five hundred twenty thousand, two hundred fifty-two".