53944587 has 12 divisors (see below), whose sum is σ = 82503720. Its totient is φ = 33847488.

The previous prime is 53944567. The next prime is 53944589. The reversal of 53944587 is 78544935.

It is not a de Polignac number, because 53944587 - 2¹⁰ = 53943563 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53944589) 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, 176137 + ... + 176442.

It is an arithmetic number, because the mean of its divisors is an integer number (6875310).

Almost surely, 2^53944587 is an apocalyptic number.

53944587 is a deficient number, since it is larger than the sum of its proper divisors (28559133).

53944587 is a wasteful number, since it uses less digits than its factorization.

53944587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352602 (or 352599 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 53944587 is about 7344.6978835075. The cubic root of 53944587 is about 377.8469818208.

The spelling of 53944587 in words is "fifty-three million, nine hundred forty-four thousand, five hundred eighty-seven".