5515213455 has 20 divisors (see below), whose sum is σ = 9886531512. Its totient is φ = 2941446960.

The previous prime is 5515213439. The next prime is 5515213463. The reversal of 5515213455 is 5543125155.

5515213455 is a `hidden beast` number, since 5 + 51 + 521 + 34 + 55 = 666.

It is not a de Polignac number, because 5515213455 - 2⁴ = 5515213439 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6808501 + ... + 6809310.

Almost surely, 2^5515213455 is an apocalyptic number.

5515213455 is a deficient number, since it is larger than the sum of its proper divisors (4371318057).

5515213455 is a wasteful number, since it uses less digits than its factorization.

5515213455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13617828 (or 13617819 counting only the distinct ones).

The product of its digits is 75000, while the sum is 36.

The square root of 5515213455 is about 74264.4831329216. The cubic root of 5515213455 is about 1766.8002085874.

The spelling of 5515213455 in words is "five billion, five hundred fifteen million, two hundred thirteen thousand, four hundred fifty-five".