4021525552 has 40 divisors (see below), whose sum is σ = 8506455552. Its totient is φ = 1826587200.

The previous prime is 4021525493. The next prime is 4021525553. The reversal of 4021525552 is 2555251204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4021525553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246777 + ... + 262567.

Almost surely, 2^4021525552 is an apocalyptic number.

It is an amenable number.

4021525552 is an abundant number, since it is smaller than the sum of its proper divisors (4484930000).

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

4021525552 is a wasteful number, since it uses less digits than its factorization.

4021525552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17257 (or 17251 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 4021525552 is about 63415.4993041922. The cubic root of 4021525552 is about 1590.2434330547.

Adding to 4021525552 its reverse (2555251204), we get a palindrome (6576776756).

It can be divided in two parts, 402152 and 5552, that added together give a palindrome (407704).

The spelling of 4021525552 in words is "four billion, twenty-one million, five hundred twenty-five thousand, five hundred fifty-two".