53122225 has 24 divisors (see below), whose sum is σ = 71479800. Its totient is φ = 38929920.

The previous prime is 53122219. The next prime is 53122247. The reversal of 53122225 is 52222135.

It can be written as a sum of positive squares in 12 ways, for example, as 40398736 + 12723489 = 6356^2 + 3567^2 .

It is not a de Polignac number, because 53122225 - 2³ = 53122217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53122196 and 53122205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47877 + ... + 48973.

It is an arithmetic number, because the mean of its divisors is an integer number (2978325).

Almost surely, 2^53122225 is an apocalyptic number.

It is an amenable number.

53122225 is a deficient number, since it is larger than the sum of its proper divisors (18357575).

53122225 is a wasteful number, since it uses less digits than its factorization.

53122225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1264 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 53122225 is about 7288.4995026411. The cubic root of 53122225 is about 375.9171034431.

The spelling of 53122225 in words is "fifty-three million, one hundred twenty-two thousand, two hundred twenty-five".