5515254511 has 16 divisors (see below), whose sum is σ = 6028706880. Its totient is φ = 5014679040.

The previous prime is 5515254487. The next prime is 5515254541. The reversal of 5515254511 is 1154525155.

It is a cyclic number.

It is not a de Polignac number, because 5515254511 - 2⁹ = 5515253999 is a prime.

It is a super-2 number, since 2×5515254511² = 60836064642211698242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515254541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1372341 + ... + 1376353.

It is an arithmetic number, because the mean of its divisors is an integer number (376794180).

Almost surely, 2^5515254511 is an apocalyptic number.

5515254511 is a deficient number, since it is larger than the sum of its proper divisors (513452369).

5515254511 is a wasteful number, since it uses less digits than its factorization.

5515254511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586.

The product of its digits is 25000, while the sum is 34.

The square root of 5515254511 is about 74264.7595498700. The cubic root of 5515254511 is about 1766.8045926769.

Adding to 5515254511 its reverse (1154525155), we get a palindrome (6669779666).

The spelling of 5515254511 in words is "five billion, five hundred fifteen million, two hundred fifty-four thousand, five hundred eleven".