53828757 has 6 divisors (see below), whose sum is σ = 77752662. Its totient is φ = 35885832.

The previous prime is 53828743. The next prime is 53828773. The reversal of 53828757 is 75782835.

It can be written as a sum of positive squares in only one way, i.e., 52403121 + 1425636 = 7239^2 + 1194^2 .

It is not a de Polignac number, because 53828757 - 2²⁰ = 52780181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53828057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2990478 + ... + 2990495.

It is an arithmetic number, because the mean of its divisors is an integer number (12958777).

Almost surely, 2^53828757 is an apocalyptic number.

It is an amenable number.

53828757 is a deficient number, since it is larger than the sum of its proper divisors (23923905).

53828757 is a wasteful number, since it uses less digits than its factorization.

53828757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980979 (or 5980976 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 53828757 is about 7336.8083660404. The cubic root of 53828757 is about 377.5763499212.

The spelling of 53828757 in words is "fifty-three million, eight hundred twenty-eight thousand, seven hundred fifty-seven".