4253512021 has 8 divisors (see below), whose sum is σ = 4674066624. Its totient is φ = 3838602720.

The previous prime is 4253512019. The next prime is 4253512027. The reversal of 4253512021 is 1202153524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4253512021 - 2¹ = 4253512019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4253512027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409745 + ... + 1412758.

It is an arithmetic number, because the mean of its divisors is an integer number (584258328).

Almost surely, 2^4253512021 is an apocalyptic number.

It is an amenable number.

4253512021 is a deficient number, since it is larger than the sum of its proper divisors (420554603).

4253512021 is a wasteful number, since it uses less digits than its factorization.

4253512021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822651.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 4253512021 is about 65218.9544611074. The cubic root of 4253512021 is about 1620.2519575850.

Adding to 4253512021 its reverse (1202153524), we get a palindrome (5455665545).

The spelling of 4253512021 in words is "four billion, two hundred fifty-three million, five hundred twelve thousand, twenty-one".