53403727 has 4 divisors (see below), whose sum is σ = 57511720. Its totient is φ = 49295736.

The previous prime is 53403709. The next prime is 53403743. The reversal of 53403727 is 72730435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72730435 = 5 ⋅14546087.

It is a cyclic number.

It is not a de Polignac number, because 53403727 - 2⁷ = 53403599 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 (53403127) 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, 2053977 + ... + 2054002.

It is an arithmetic number, because the mean of its divisors is an integer number (14377930).

Almost surely, 2^53403727 is an apocalyptic number.

53403727 is a deficient number, since it is larger than the sum of its proper divisors (4107993).

53403727 is a wasteful number, since it uses less digits than its factorization.

53403727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107992.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 53403727 is about 7307.7853690431. The cubic root of 53403727 is about 376.5799461864.

The spelling of 53403727 in words is "fifty-three million, four hundred three thousand, seven hundred twenty-seven".