5155506 has 24 divisors (see below), whose sum is σ = 11473644. Its totient is φ = 1671840.

The previous prime is 5155499. The next prime is 5155511. The reversal of 5155506 is 6055515.

5155506 is a `hidden beast` number, since 5 + 155 + 506 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5130225 + 25281 = 2265^2 + 159^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5155506.

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, 3205 + ... + 4536.

Almost surely, 2^5155506 is an apocalyptic number.

5155506 is an abundant number, since it is smaller than the sum of its proper divisors (6318138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5155506 is a wasteful number, since it uses less digits than its factorization.

5155506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786 (or 7783 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 5155506 is about 2270.5739362549. The cubic root of 5155506 is about 172.7522710902.

Subtracting 5155506 from its reverse (6055515), we obtain a palindrome (900009).

The spelling of 5155506 in words is "five million, one hundred fifty-five thousand, five hundred six".