50545387 has 4 divisors (see below), whose sum is σ = 50585656. Its totient is φ = 50505120.

The previous prime is 50545373. The next prime is 50545427. The reversal of 50545387 is 78354505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78354505 = 5 ⋅15670901.

It is a cyclic number.

It is not a de Polignac number, because 50545387 - 2⁷ = 50545259 is a prime.

It is a super-2 number, since 2×50545387² = 5109672293959538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50545337) 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, 18189 + ... + 20782.

It is an arithmetic number, because the mean of its divisors is an integer number (12646414).

Almost surely, 2^50545387 is an apocalyptic number.

50545387 is a deficient number, since it is larger than the sum of its proper divisors (40269).

50545387 is a wasteful number, since it uses less digits than its factorization.

50545387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40268.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 50545387 is about 7109.5279027513. The cubic root of 50545387 is about 369.7377908485.

The spelling of 50545387 in words is "fifty million, five hundred forty-five thousand, three hundred eighty-seven".