50861261 has 6 divisors (see below), whose sum is σ = 55905486. Its totient is φ = 46237400.

The previous prime is 50861243. The next prime is 50861267. The reversal of 50861261 is 16216805.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50495236 + 366025 = 7106^2 + 605^2 .

It is not a de Polignac number, because 50861261 - 2¹⁸ = 50599117 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 (50861267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210050 + ... + 210291.

It is an arithmetic number, because the mean of its divisors is an integer number (9317581).

Almost surely, 2^50861261 is an apocalyptic number.

It is an amenable number.

50861261 is a deficient number, since it is larger than the sum of its proper divisors (5044225).

50861261 is a wasteful number, since it uses less digits than its factorization.

50861261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420363 (or 420352 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 50861261 is about 7131.7081404107. The cubic root of 50861261 is about 370.5063945139.

The spelling of 50861261 in words is "fifty million, eight hundred sixty-one thousand, two hundred sixty-one".