53355757 has 12 divisors (see below), whose sum is σ = 66842076. Its totient is φ = 42215040.

The previous prime is 53355749. The next prime is 53355779. The reversal of 53355757 is 75755335.

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 41203561 = 3486^2 + 6419^2 .

It is not a de Polignac number, because 53355757 - 2³ = 53355749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53355727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41244 + ... + 42517.

It is an arithmetic number, because the mean of its divisors is an integer number (5570173).

Almost surely, 2^53355757 is an apocalyptic number.

It is an amenable number.

53355757 is a deficient number, since it is larger than the sum of its proper divisors (13486319).

53355757 is a wasteful number, since it uses less digits than its factorization.

53355757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83788 (or 83781 counting only the distinct ones).

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

The square root of 53355757 is about 7304.5025155722. The cubic root of 53355757 is about 376.4671578564.

The spelling of 53355757 in words is "fifty-three million, three hundred fifty-five thousand, seven hundred fifty-seven".