4021525450 has 48 divisors (see below), whose sum is σ = 7577354304. Its totient is φ = 1587795200.

The previous prime is 4021525441. The next prime is 4021525471. The reversal of 4021525450 is 545251204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1662642 + ... + 1665058.

It is an arithmetic number, because the mean of its divisors is an integer number (157861548).

Almost surely, 2^4021525450 is an apocalyptic number.

4021525450 is a deficient number, since it is larger than the sum of its proper divisors (3555828854).

4021525450 is a wasteful number, since it uses less digits than its factorization.

4021525450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 4021525450 is about 63415.4984999724. The cubic root of 4021525450 is about 1590.2434196100.

Adding to 4021525450 its reverse (545251204), we get a palindrome (4566776654).

The spelling of 4021525450 in words is "four billion, twenty-one million, five hundred twenty-five thousand, four hundred fifty".