5515081 has 8 divisors (see below), whose sum is σ = 6479424. Its totient is φ = 4627920.

The previous prime is 5515079. The next prime is 5515087. The reversal of 5515081 is 1805155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5515081 - 2¹ = 5515079 is a prime.

It is a super-2 number, since 2×5515081² = 60832236873122, 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 (5515087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19141 + ... + 19426.

It is an arithmetic number, because the mean of its divisors is an integer number (809928).

Almost surely, 2^5515081 is an apocalyptic number.

It is an amenable number.

5515081 is a deficient number, since it is larger than the sum of its proper divisors (964343).

5515081 is a wasteful number, since it uses less digits than its factorization.

5515081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38591.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 5515081 is about 2348.4209588572. The cubic root of 5515081 is about 176.6786064475.

The spelling of 5515081 in words is "five million, five hundred fifteen thousand, eighty-one".