53969155 has 16 divisors (see below), whose sum is σ = 68351040. Its totient is φ = 40826368.

The previous prime is 53969147. The next prime is 53969183. The reversal of 53969155 is 55196935.

It is a cyclic number.

It is not a de Polignac number, because 53969155 - 2³ = 53969147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7599 + ... + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (4271940).

Almost surely, 2^53969155 is an apocalyptic number.

53969155 is a deficient number, since it is larger than the sum of its proper divisors (14381885).

53969155 is a wasteful number, since it uses less digits than its factorization.

53969155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390.

The product of its digits is 182250, while the sum is 43.

The square root of 53969155 is about 7346.3701921425. The cubic root of 53969155 is about 377.9043341045.

The spelling of 53969155 in words is "fifty-three million, nine hundred sixty-nine thousand, one hundred fifty-five".