50251861 has 8 divisors (see below), whose sum is σ = 55719648. Its totient is φ = 44934000.

The previous prime is 50251819. The next prime is 50251871. The reversal of 50251861 is 16815205.

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

It is a cyclic number.

It is not a de Polignac number, because 50251861 - 2⁹ = 50251349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50251871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36775 + ... + 38116.

It is an arithmetic number, because the mean of its divisors is an integer number (6964956).

Almost surely, 2^50251861 is an apocalyptic number.

It is an amenable number.

50251861 is a deficient number, since it is larger than the sum of its proper divisors (5467787).

50251861 is a wasteful number, since it uses less digits than its factorization.

50251861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74963.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 50251861 is about 7088.8547029827. The cubic root of 50251861 is about 369.0206900314.

It can be divided in two parts, 5025 and 1861, that added together give a palindrome (6886).

The spelling of 50251861 in words is "fifty million, two hundred fifty-one thousand, eight hundred sixty-one".