53354809 has 8 divisors (see below), whose sum is σ = 56101320. Its totient is φ = 50668800.

The previous prime is 53354803. The next prime is 53354837. The reversal of 53354809 is 90845335.

It can be written as a sum of positive squares in 4 ways, for example, as 3610000 + 49744809 = 1900^2 + 7053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53354809 - 2⁷ = 53354681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53354803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13312 + ... + 16849.

It is an arithmetic number, because the mean of its divisors is an integer number (7012665).

Almost surely, 2^53354809 is an apocalyptic number.

It is an amenable number.

53354809 is a deficient number, since it is larger than the sum of its proper divisors (2746511).

53354809 is a wasteful number, since it uses less digits than its factorization.

53354809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30251.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 53354809 is about 7304.4376238010. The cubic root of 53354809 is about 376.4649282127.

The spelling of 53354809 in words is "fifty-three million, three hundred fifty-four thousand, eight hundred nine".