4521521001 has 8 divisors (see below), whose sum is σ = 6142443840. Its totient is φ = 2957472752.

The previous prime is 4521520973. The next prime is 4521521003. The reversal of 4521521001 is 1001251254.

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 4521521001 - 2¹⁸ = 4521258857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4521521003) 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, 14218461 + ... + 14218778.

It is an arithmetic number, because the mean of its divisors is an integer number (767805480).

Almost surely, 2^4521521001 is an apocalyptic number.

It is an amenable number.

4521521001 is a deficient number, since it is larger than the sum of its proper divisors (1620922839).

4521521001 is a wasteful number, since it uses less digits than its factorization.

4521521001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28437295.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 4521521001 is about 67242.2560671487. The cubic root of 4521521001 is about 1653.5913206781.

Adding to 4521521001 its reverse (1001251254), we get a palindrome (5522772255).

The spelling of 4521521001 in words is "four billion, five hundred twenty-one million, five hundred twenty-one thousand, one".