53628986 has 4 divisors (see below), whose sum is σ = 80443482. Its totient is φ = 26814492.

The previous prime is 53628983. The next prime is 53628989. The reversal of 53628986 is 68982635.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53628983) and next prime (53628989).

It can be written as a sum of positive squares in only one way, i.e., 27363361 + 26265625 = 5231^2 + 5125^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53628986.

It is not an unprimeable number, because it can be changed into a prime (53628983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13407245 + ... + 13407248.

Almost surely, 2^53628986 is an apocalyptic number.

53628986 is a deficient number, since it is larger than the sum of its proper divisors (26814496).

53628986 is a wasteful number, since it uses less digits than its factorization.

53628986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26814495.

The product of its digits is 622080, while the sum is 47.

The square root of 53628986 is about 7323.1814124737. The cubic root of 53628986 is about 377.1086797678.

The spelling of 53628986 in words is "fifty-three million, six hundred twenty-eight thousand, nine hundred eighty-six".