53054991 has 48 divisors (see below), whose sum is σ = 87090432. Its totient is φ = 31101840.

The previous prime is 53054971. The next prime is 53054999. The reversal of 53054991 is 19945035.

53054991 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 53054991 - 2⁵ = 53054959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53054999) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 515046 + ... + 515148.

It is an arithmetic number, because the mean of its divisors is an integer number (1814384).

Almost surely, 2^53054991 is an apocalyptic number.

53054991 is a deficient number, since it is larger than the sum of its proper divisors (34035441).

53054991 is a wasteful number, since it uses less digits than its factorization.

53054991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 53054991 is about 7283.8857075053. The cubic root of 53054991 is about 375.7584436677.

It can be divided in two parts, 53054 and 991, that added together give a palindrome (54045).

The spelling of 53054991 in words is "fifty-three million, fifty-four thousand, nine hundred ninety-one".