53146225 has 18 divisors (see below), whose sum is σ = 72441110. Its totient is φ = 38649600.

The previous prime is 53146213. The next prime is 53146231. The reversal of 53146225 is 52264135.

It can be written as a sum of positive squares in 3 ways, for example, as 278784 + 52867441 = 528^2 + 7271^2 .

It is not a de Polignac number, because 53146225 - 2⁵ = 53146193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53146193 and 53146202.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5760 + ... + 11809.

Almost surely, 2^53146225 is an apocalyptic number.

53146225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53146225 is a deficient number, since it is larger than the sum of its proper divisors (19294885).

53146225 is a wasteful number, since it uses less digits than its factorization.

53146225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17601 (or 17585 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 53146225 is about 7290.1457461425. The cubic root of 53146225 is about 375.9737065701.

The spelling of 53146225 in words is "fifty-three million, one hundred forty-six thousand, two hundred twenty-five".