53791155 has 96 divisors (see below), whose sum is σ = 109166400. Its totient is φ = 25090560.

The previous prime is 53791117. The next prime is 53791159. The reversal of 53791155 is 55119735.

53791155 is a `hidden beast` number, since 537 + 9 + 115 + 5 = 666.

It is not a de Polignac number, because 53791155 - 2⁹ = 53790643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53791159) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 604351 + ... + 604439.

It is an arithmetic number, because the mean of its divisors is an integer number (1137150).

Almost surely, 2^53791155 is an apocalyptic number.

53791155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53791155 is an abundant number, since it is smaller than the sum of its proper divisors (55375245).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53791155 is a wasteful number, since it uses less digits than its factorization.

53791155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 145 counting only the distinct ones).

The product of its digits is 23625, while the sum is 36.

The square root of 53791155 is about 7334.2453599535. The cubic root of 53791155 is about 377.4884109712.

The spelling of 53791155 in words is "fifty-three million, seven hundred ninety-one thousand, one hundred fifty-five".