5155523 has 4 divisors (see below), whose sum is σ = 5228208. Its totient is φ = 5082840.

The previous prime is 5155511. The next prime is 5155547. The reversal of 5155523 is 3255515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3255515 = 5 ⋅651103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5155523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5155492 and 5155501.

It is not an unprimeable number, because it can be changed into a prime (5158523) 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, 36236 + ... + 36377.

It is an arithmetic number, because the mean of its divisors is an integer number (1307052).

Almost surely, 2^5155523 is an apocalyptic number.

5155523 is a deficient number, since it is larger than the sum of its proper divisors (72685).

5155523 is an equidigital number, since it uses as much as digits as its factorization.

5155523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72684.

The product of its digits is 3750, while the sum is 26.

The square root of 5155523 is about 2270.5776797987. The cubic root of 5155523 is about 172.7524609704.

The spelling of 5155523 in words is "five million, one hundred fifty-five thousand, five hundred twenty-three".