53156459 has 4 divisors (see below), whose sum is σ = 54453000. Its totient is φ = 51859920.

The previous prime is 53156447. The next prime is 53156479. The reversal of 53156459 is 95465135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95465135 = 5 ⋅19093027.

It is a cyclic number.

It is not a de Polignac number, because 53156459 - 2²⁰ = 52107883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53156429) 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, 648209 + ... + 648290.

It is an arithmetic number, because the mean of its divisors is an integer number (13613250).

Almost surely, 2^53156459 is an apocalyptic number.

53156459 is a deficient number, since it is larger than the sum of its proper divisors (1296541).

53156459 is a wasteful number, since it uses less digits than its factorization.

53156459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296540.

The product of its digits is 81000, while the sum is 38.

The square root of 53156459 is about 7290.8476187615. The cubic root of 53156459 is about 375.9978379044.

The spelling of 53156459 in words is "fifty-three million, one hundred fifty-six thousand, four hundred fifty-nine".