5155988 has 6 divisors (see below), whose sum is σ = 9022986. Its totient is φ = 2577992.

The previous prime is 5155961. The next prime is 5155993. The reversal of 5155988 is 8895515.

It can be written as a sum of positive squares in only one way, i.e., 3928324 + 1227664 = 1982^2 + 1108^2 .

It is a super-2 number, since 2×5155988² = 53168424512288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644495 + ... + 644502.

It is an arithmetic number, because the mean of its divisors is an integer number (1503831).

Almost surely, 2^5155988 is an apocalyptic number.

It is an amenable number.

5155988 is a deficient number, since it is larger than the sum of its proper divisors (3866998).

5155988 is a wasteful number, since it uses less digits than its factorization.

5155988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289001 (or 1288999 counting only the distinct ones).

The product of its digits is 72000, while the sum is 41.

The square root of 5155988 is about 2270.6800743390. The cubic root of 5155988 is about 172.7576545902.

The spelling of 5155988 in words is "five million, one hundred fifty-five thousand, nine hundred eighty-eight".