4021533250 has 32 divisors (see below), whose sum is σ = 8603786880. Its totient is φ = 1378810800.

The previous prime is 4021533227. The next prime is 4021533253. The reversal of 4021533250 is 523351204.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (4021533253) 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 15 ways as a sum of consecutive naturals, for example, 1147260 + ... + 1150759.

It is an arithmetic number, because the mean of its divisors is an integer number (268868340).

Almost surely, 2^4021533250 is an apocalyptic number.

4021533250 is an abundant number, since it is smaller than the sum of its proper divisors (4582253630).

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

4021533250 is a wasteful number, since it uses less digits than its factorization.

4021533250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298043 (or 2298033 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4021533250 is about 63415.5599991043. The cubic root of 4021533250 is about 1590.2444477349.

Adding to 4021533250 its reverse (523351204), we get a palindrome (4544884454).

The spelling of 4021533250 in words is "four billion, twenty-one million, five hundred thirty-three thousand, two hundred fifty".