4021552 has 10 divisors (see below), whose sum is σ = 7791788. Its totient is φ = 2010768.

The previous prime is 4021543. The next prime is 4021561. The reversal of 4021552 is 2551204.

It is an interprime number because it is at equal distance from previous prime (4021543) and next prime (4021561).

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125658 + ... + 125689.

Almost surely, 2^4021552 is an apocalyptic number.

It is an amenable number.

4021552 is a deficient number, since it is larger than the sum of its proper divisors (3770236).

4021552 is a wasteful number, since it uses less digits than its factorization.

4021552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251355 (or 251349 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4021552 is about 2005.3807618505. The cubic root of 4021552 is about 159.0246919183.

Adding to 4021552 its reverse (2551204), we get a palindrome (6572756).

The spelling of 4021552 in words is "four million, twenty-one thousand, five hundred fifty-two".