53355775 has 48 divisors (see below), whose sum is σ = 77861088. Its totient is φ = 35840000.

The previous prime is 53355749. The next prime is 53355779. The reversal of 53355775 is 57755335.

It is a de Polignac number, because none of the positive numbers 2^k-53355775 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53355779) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 472119 + ... + 472231.

It is an arithmetic number, because the mean of its divisors is an integer number (1622106).

Almost surely, 2^53355775 is an apocalyptic number.

53355775 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53355775 is a deficient number, since it is larger than the sum of its proper divisors (24505313).

53355775 is a wasteful number, since it uses less digits than its factorization.

53355775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its digits is 275625, while the sum is 40.

The square root of 53355775 is about 7304.5037476888. The cubic root of 53355775 is about 376.4672001912.

The spelling of 53355775 in words is "fifty-three million, three hundred fifty-five thousand, seven hundred seventy-five".