50621898 has 8 divisors (see below), whose sum is σ = 101243808. Its totient is φ = 16873964.

The previous prime is 50621897. The next prime is 50621939. The reversal of 50621898 is 89812605.

It is a sphenic number, since it is the product of 3 distinct primes.

50621898 is an admirable number.

It is a super-4 number, since 4×50621898⁴ (a number of 32 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50621897) 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, 4218486 + ... + 4218497.

It is an arithmetic number, because the mean of its divisors is an integer number (12655476).

Almost surely, 2^50621898 is an apocalyptic number.

50621898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50621898 is a wasteful number, since it uses less digits than its factorization.

50621898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8436988.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 50621898 is about 7114.9067456995. The cubic root of 50621898 is about 369.9242552522.

The spelling of 50621898 in words is "fifty million, six hundred twenty-one thousand, eight hundred ninety-eight".