5515051501 has 2 divisors, whose sum is σ = 5515051502. Its totient is φ = 5515051500.

The previous prime is 5515051499. The next prime is 5515051513. The reversal of 5515051501 is 1051505155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5234522500 + 280529001 = 72350^2 + 16749^2 .

It is a cyclic number.

It is not a de Polignac number, because 5515051501 - 2¹ = 5515051499 is a prime.

Together with 5515051499, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5515051501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5515051561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757525750 + 2757525751.

It is an arithmetic number, because the mean of its divisors is an integer number (2757525751).

Almost surely, 2^5515051501 is an apocalyptic number.

It is an amenable number.

5515051501 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515051501 is an equidigital number, since it uses as much as digits as its factorization.

5515051501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 5515051501 is about 74263.3927382799. The cubic root of 5515051501 is about 1766.7829144147.

Adding to 5515051501 its reverse (1051505155), we get a palindrome (6566556656).

The spelling of 5515051501 in words is "five billion, five hundred fifteen million, fifty-one thousand, five hundred one".