53165451 has 4 divisors (see below), whose sum is σ = 70887272. Its totient is φ = 35443632.

The previous prime is 53165449. The next prime is 53165461. The reversal of 53165451 is 15456135.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53165451 - 2¹ = 53165449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53165461) 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, 8860906 + ... + 8860911.

It is an arithmetic number, because the mean of its divisors is an integer number (17721818).

Almost surely, 2^53165451 is an apocalyptic number.

53165451 is a deficient number, since it is larger than the sum of its proper divisors (17721821).

53165451 is a wasteful number, since it uses less digits than its factorization.

53165451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17721820.

The product of its digits is 9000, while the sum is 30.

The square root of 53165451 is about 7291.4642562382. The cubic root of 53165451 is about 376.0190380997.

The spelling of 53165451 in words is "fifty-three million, one hundred sixty-five thousand, four hundred fifty-one".