53985945 has 32 divisors (see below), whose sum is σ = 97074432. Its totient is φ = 25420032.

The previous prime is 53985937. The next prime is 53985961. The reversal of 53985945 is 54958935.

It is a happy number.

It is not a de Polignac number, because 53985945 - 2³ = 53985937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53985894 and 53985903.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1534 + ... + 10503.

It is an arithmetic number, because the mean of its divisors is an integer number (3033576).

Almost surely, 2^53985945 is an apocalyptic number.

It is an amenable number.

53985945 is a deficient number, since it is larger than the sum of its proper divisors (43088487).

53985945 is a wasteful number, since it uses less digits than its factorization.

53985945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12081.

The product of its digits is 972000, while the sum is 48.

The square root of 53985945 is about 7347.5128444937. The cubic root of 53985945 is about 377.9435191779.

The spelling of 53985945 in words is "fifty-three million, nine hundred eighty-five thousand, nine hundred forty-five".