5515151445 has 12 divisors (see below), whose sum is σ = 9559595916. Its totient is φ = 2941414080.

The previous prime is 5515151423. The next prime is 5515151519. The reversal of 5515151445 is 5441515155.

5515151445 is a `hidden beast` number, since 5 + 51 + 51 + 514 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4043815281 + 1471336164 = 63591^2 + 38358^2 .

It is not a de Polignac number, because 5515151445 - 2¹¹ = 5515149397 is a prime.

It is a super-2 number, since 2×5515151445² = 60833790922571176050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61279416 + ... + 61279505.

It is an arithmetic number, because the mean of its divisors is an integer number (796632993).

Almost surely, 2^5515151445 is an apocalyptic number.

It is an amenable number.

5515151445 is a deficient number, since it is larger than the sum of its proper divisors (4044444471).

5515151445 is a wasteful number, since it uses less digits than its factorization.

5515151445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122558932 (or 122558929 counting only the distinct ones).

The product of its digits is 50000, while the sum is 36.

The square root of 5515151445 is about 74264.0656374266. The cubic root of 5515151445 is about 1766.7935869221.

The spelling of 5515151445 in words is "five billion, five hundred fifteen million, one hundred fifty-one thousand, four hundred forty-five".