53858553 has 32 divisors (see below), whose sum is σ = 84341760. Its totient is φ = 29937600.

The previous prime is 53858551. The next prime is 53858561. The reversal of 53858553 is 35585835.

It is not a de Polignac number, because 53858553 - 2¹ = 53858551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53858551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141918 + ... + 142296.

It is an arithmetic number, because the mean of its divisors is an integer number (2635680).

Almost surely, 2^53858553 is an apocalyptic number.

It is an amenable number.

53858553 is a deficient number, since it is larger than the sum of its proper divisors (30483207).

53858553 is a wasteful number, since it uses less digits than its factorization.

53858553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its digits is 360000, while the sum is 42.

The square root of 53858553 is about 7338.8386683453. The cubic root of 53858553 is about 377.6460040762.

The spelling of 53858553 in words is "fifty-three million, eight hundred fifty-eight thousand, five hundred fifty-three".