50878403 has 4 divisors (see below), whose sum is σ = 50894808. Its totient is φ = 50862000.

The previous prime is 50878397. The next prime is 50878427. The reversal of 50878403 is 30487805.

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 50878403 - 2⁶ = 50878339 is a prime.

It is a super-2 number, since 2×50878403² = 5177223783660818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50878483) 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, 1973 + ... + 10278.

It is an arithmetic number, because the mean of its divisors is an integer number (12723702).

Almost surely, 2^50878403 is an apocalyptic number.

50878403 is a deficient number, since it is larger than the sum of its proper divisors (16405).

50878403 is a wasteful number, since it uses less digits than its factorization.

50878403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16404.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 50878403 is about 7132.9098550311. The cubic root of 50878403 is about 370.5480143184.

The spelling of 50878403 in words is "fifty million, eight hundred seventy-eight thousand, four hundred three".