5515102001 has 4 divisors (see below), whose sum is σ = 5518115904. Its totient is φ = 5512088100.

The previous prime is 5515101983. The next prime is 5515102031. The reversal of 5515102001 is 1002015155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5515102001 - 2¹⁸ = 5514839857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515102031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504205 + ... + 1507866.

It is an arithmetic number, because the mean of its divisors is an integer number (1379528976).

Almost surely, 2^5515102001 is an apocalyptic number.

It is an amenable number.

5515102001 is a deficient number, since it is larger than the sum of its proper divisors (3013903).

5515102001 is a wasteful number, since it uses less digits than its factorization.

5515102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013902.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 5515102001 is about 74263.7327435135. The cubic root of 5515102001 is about 1766.7883070669.

Adding to 5515102001 its reverse (1002015155), we get a palindrome (6517117156).

The spelling of 5515102001 in words is "five billion, five hundred fifteen million, one hundred two thousand, one".