53520349 has 4 divisors (see below), whose sum is σ = 53568000. Its totient is φ = 53472700.

The previous prime is 53520331. The next prime is 53520371. The reversal of 53520349 is 94302535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94302535 = 5 ⋅18860507.

It is a cyclic number.

It is not a de Polignac number, because 53520349 - 2⁷ = 53520221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53520349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53520319) 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, 22099 + ... + 24400.

It is an arithmetic number, because the mean of its divisors is an integer number (13392000).

Almost surely, 2^53520349 is an apocalyptic number.

It is an amenable number.

53520349 is a deficient number, since it is larger than the sum of its proper divisors (47651).

53520349 is a wasteful number, since it uses less digits than its factorization.

53520349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47650.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 53520349 is about 7315.7603159207. The cubic root of 53520349 is about 376.8538694932.

The spelling of 53520349 in words is "fifty-three million, five hundred twenty thousand, three hundred forty-nine".