5131225 has 24 divisors (see below), whose sum is σ = 7106688. Its totient is φ = 3643200.

The previous prime is 5131223. The next prime is 5131237. The reversal of 5131225 is 5221315.

It is not a de Polignac number, because 5131225 - 2¹ = 5131223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12727 + ... + 13123.

It is an arithmetic number, because the mean of its divisors is an integer number (296112).

Almost surely, 2^5131225 is an apocalyptic number.

5131225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5131225 is a deficient number, since it is larger than the sum of its proper divisors (1975463).

5131225 is a wasteful number, since it uses less digits than its factorization.

5131225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 460 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 5131225 is about 2265.2207397956. The cubic root of 5131225 is about 172.4806391489.

Subtracting from 5131225 its sum of digits (19), we obtain a triangular number (5131206 = T₃₂₀₃).

It can be divided in two parts, 5131 and 225, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 5131225 in words is "five million, one hundred thirty-one thousand, two hundred twenty-five".