50724987 has 4 divisors (see below), whose sum is σ = 67633320. Its totient is φ = 33816656.

The previous prime is 50724983. The next prime is 50725009. The reversal of 50724987 is 78942705.

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 50724987 - 2² = 50724983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50724983) 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, 8454162 + ... + 8454167.

It is an arithmetic number, because the mean of its divisors is an integer number (16908330).

Almost surely, 2^50724987 is an apocalyptic number.

50724987 is a deficient number, since it is larger than the sum of its proper divisors (16908333).

50724987 is a wasteful number, since it uses less digits than its factorization.

50724987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16908332.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 50724987 is about 7122.1476395818. The cubic root of 50724987 is about 370.1751958236.

The spelling of 50724987 in words is "fifty million, seven hundred twenty-four thousand, nine hundred eighty-seven".