53891955 has 48 divisors (see below), whose sum is σ = 106535520. Its totient is φ = 24966144.

The previous prime is 53891953. The next prime is 53891963. The reversal of 53891955 is 55919835.

It is not a de Polignac number, because 53891955 - 2¹ = 53891953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 53891955.

It is not an unprimeable number, because it can be changed into a prime (53891951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7236 + ... + 12654.

It is an arithmetic number, because the mean of its divisors is an integer number (2219490).

Almost surely, 2^53891955 is an apocalyptic number.

53891955 is a deficient number, since it is larger than the sum of its proper divisors (52643565).

53891955 is a wasteful number, since it uses less digits than its factorization.

53891955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 5457 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 53891955 is about 7341.1140162785. The cubic root of 53891955 is about 377.7240574484.

The spelling of 53891955 in words is "fifty-three million, eight hundred ninety-one thousand, nine hundred fifty-five".