53985407 has 6 divisors (see below), whose sum is σ = 62799408. Its totient is φ = 46273164.

The previous prime is 53985391. The next prime is 53985419. The reversal of 53985407 is 70458935.

It is not a de Polignac number, because 53985407 - 2⁴ = 53985391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53985457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550823 + ... + 550920.

It is an arithmetic number, because the mean of its divisors is an integer number (10466568).

Almost surely, 2^53985407 is an apocalyptic number.

53985407 is a deficient number, since it is larger than the sum of its proper divisors (8814001).

53985407 is a wasteful number, since it uses less digits than its factorization.

53985407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101757 (or 1101750 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 53985407 is about 7347.4762333743. The cubic root of 53985407 is about 377.9422637012.

The spelling of 53985407 in words is "fifty-three million, nine hundred eighty-five thousand, four hundred seven".