53387764 has 12 divisors (see below), whose sum is σ = 94286500. Its totient is φ = 26448768.

The previous prime is 53387759. The next prime is 53387767. The reversal of 53387764 is 46778335.

It can be written as a sum of positive squares in 2 ways, for example, as 16080100 + 37307664 = 4010^2 + 6108^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53387764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53387767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60789 + ... + 61660.

Almost surely, 2^53387764 is an apocalyptic number.

It is an amenable number.

53387764 is a deficient number, since it is larger than the sum of its proper divisors (40898736).

53387764 is a wasteful number, since it uses less digits than its factorization.

53387764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122562 (or 122560 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The square root of 53387764 is about 7306.6930960593. The cubic root of 53387764 is about 376.5424210605.

The spelling of 53387764 in words is "fifty-three million, three hundred eighty-seven thousand, seven hundred sixty-four".