53158715 has 4 divisors (see below), whose sum is σ = 63790464. Its totient is φ = 42526968.

The previous prime is 53158709. The next prime is 53158753. The reversal of 53158715 is 51785135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51785135 = 5 ⋅10357027.

It is a cyclic number.

It is not a de Polignac number, because 53158715 - 2¹⁶ = 53093179 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5315867 + ... + 5315876.

It is an arithmetic number, because the mean of its divisors is an integer number (15947616).

Almost surely, 2^53158715 is an apocalyptic number.

53158715 is a deficient number, since it is larger than the sum of its proper divisors (10631749).

53158715 is a wasteful number, since it uses less digits than its factorization.

53158715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631748.

The product of its digits is 21000, while the sum is 35.

The square root of 53158715 is about 7291.0023316414. The cubic root of 53158715 is about 376.0031570393.

The spelling of 53158715 in words is "fifty-three million, one hundred fifty-eight thousand, seven hundred fifteen".