53853855 has 32 divisors (see below), whose sum is σ = 95344128. Its totient is φ = 25737600.

The previous prime is 53853853. The next prime is 53853857. The reversal of 53853855 is 55835835.

It is an interprime number because it is at equal distance from previous prime (53853853) and next prime (53853857).

It is not a de Polignac number, because 53853855 - 2¹ = 53853853 is a prime.

It is a super-2 number, since 2×53853855² = 5800475396722050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53853853) 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, 9417 + ... + 14013.

It is an arithmetic number, because the mean of its divisors is an integer number (2979504).

Almost surely, 2^53853855 is an apocalyptic number.

53853855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53853855 is a deficient number, since it is larger than the sum of its proper divisors (41490273).

53853855 is a wasteful number, since it uses less digits than its factorization.

53853855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687.

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

The square root of 53853855 is about 7338.5185834745. The cubic root of 53853855 is about 377.6350232606.

The spelling of 53853855 in words is "fifty-three million, eight hundred fifty-three thousand, eight hundred fifty-five".