53755487 has 4 divisors (see below), whose sum is σ = 55208376. Its totient is φ = 52302600.

The previous prime is 53755459. The next prime is 53755489. The reversal of 53755487 is 78455735.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78455735 = 5 ⋅15691147.

It is a cyclic number.

It is not a de Polignac number, because 53755487 - 2¹⁸ = 53493343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53755489) 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, 726389 + ... + 726462.

It is an arithmetic number, because the mean of its divisors is an integer number (13802094).

Almost surely, 2^53755487 is an apocalyptic number.

53755487 is a deficient number, since it is larger than the sum of its proper divisors (1452889).

53755487 is a wasteful number, since it uses less digits than its factorization.

53755487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452888.

The product of its digits is 588000, while the sum is 44.

The square root of 53755487 is about 7331.8133500520. The cubic root of 53755487 is about 377.4049571412.

The spelling of 53755487 in words is "fifty-three million, seven hundred fifty-five thousand, four hundred eighty-seven".