5515977 has 4 divisors (see below), whose sum is σ = 7354640. Its totient is φ = 3677316.

The previous prime is 5515963. The next prime is 5515981. The reversal of 5515977 is 7795155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5515977 - 2⁸ = 5515721 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919327 + ... + 919332.

It is an arithmetic number, because the mean of its divisors is an integer number (1838660).

Almost surely, 2^5515977 is an apocalyptic number.

It is an amenable number.

5515977 is a deficient number, since it is larger than the sum of its proper divisors (1838663).

5515977 is a wasteful number, since it uses less digits than its factorization.

5515977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838662.

The product of its digits is 55125, while the sum is 39.

The square root of 5515977 is about 2348.6117175898. The cubic root of 5515977 is about 176.6881738778.

The spelling of 5515977 in words is "five million, five hundred fifteen thousand, nine hundred seventy-seven".