53109475 has 12 divisors (see below), whose sum is σ = 66264856. Its totient is φ = 42223680.

The previous prime is 53109439. The next prime is 53109481. The reversal of 53109475 is 57490135.

53109475 = T₄₀₀ + T₄₀₁ + ... + T₇₂₅.

53109475 = 230² + 231² + ... + 555².

53109475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53109475 - 2¹⁹ = 52585187 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 53109475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2442 + ... + 10591.

Almost surely, 2^53109475 is an apocalyptic number.

53109475 is a deficient number, since it is larger than the sum of its proper divisors (13155381).

53109475 is a wasteful number, since it uses less digits than its factorization.

53109475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13206 (or 13201 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 53109475 is about 7287.6247845234. The cubic root of 53109475 is about 375.8870260975.

The spelling of 53109475 in words is "fifty-three million, one hundred nine thousand, four hundred seventy-five".