53450407 has 4 divisors (see below), whose sum is σ = 53472280. Its totient is φ = 53428536.

The previous prime is 53450387. The next prime is 53450437. The reversal of 53450407 is 70405435.

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

It is a cyclic number.

It is not a de Polignac number, because 53450407 - 2¹¹ = 53448359 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 (53450437) 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, 6732 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (13368070).

Almost surely, 2^53450407 is an apocalyptic number.

53450407 is a deficient number, since it is larger than the sum of its proper divisors (21873).

53450407 is a wasteful number, since it uses less digits than its factorization.

53450407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21872.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 53450407 is about 7310.9785254780. The cubic root of 53450407 is about 376.6896366114.

The spelling of 53450407 in words is "fifty-three million, four hundred fifty thousand, four hundred seven".