53887215 has 16 divisors (see below), whose sum is σ = 86472288. Its totient is φ = 28655616.

The previous prime is 53887201. The next prime is 53887241. The reversal of 53887215 is 51278835.

It is not a de Polignac number, because 53887215 - 2⁴ = 53887199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207 + ... + 10383.

It is an arithmetic number, because the mean of its divisors is an integer number (5404518).

Almost surely, 2^53887215 is an apocalyptic number.

53887215 is a deficient number, since it is larger than the sum of its proper divisors (32585073).

53887215 is a wasteful number, since it uses less digits than its factorization.

53887215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538.

The product of its digits is 67200, while the sum is 39.

The square root of 53887215 is about 7340.7911698944. The cubic root of 53887215 is about 377.7129830402.

The spelling of 53887215 in words is "fifty-three million, eight hundred eighty-seven thousand, two hundred fifteen".