50909953 has 4 divisors (see below), whose sum is σ = 51222448. Its totient is φ = 50597460.

The previous prime is 50909941. The next prime is 50909983. The reversal of 50909953 is 35990905.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35990905 = 5 ⋅7198181.

It is a cyclic number.

It is not a de Polignac number, because 50909953 - 2¹³ = 50901761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50909983) 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, 156003 + ... + 156328.

It is an arithmetic number, because the mean of its divisors is an integer number (12805612).

Almost surely, 2^50909953 is an apocalyptic number.

It is an amenable number.

50909953 is a deficient number, since it is larger than the sum of its proper divisors (312495).

50909953 is a wasteful number, since it uses less digits than its factorization.

50909953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312494.

The product of its (nonzero) digits is 54675, while the sum is 40.

The square root of 50909953 is about 7135.1210921750. The cubic root of 50909953 is about 370.6245915004.

The spelling of 50909953 in words is "fifty million, nine hundred nine thousand, nine hundred fifty-three".