50551001 has 4 divisors (see below), whose sum is σ = 53211600. Its totient is φ = 47890404.

The previous prime is 50550977. The next prime is 50551037. The reversal of 50551001 is 10015505.

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.

It is a cyclic number.

It is not a de Polignac number, because 50551001 - 2¹⁰ = 50549977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50551091) 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, 1330271 + ... + 1330308.

It is an arithmetic number, because the mean of its divisors is an integer number (13302900).

Almost surely, 2^50551001 is an apocalyptic number.

It is an amenable number.

50551001 is a deficient number, since it is larger than the sum of its proper divisors (2660599).

50551001 is a wasteful number, since it uses less digits than its factorization.

50551001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660598.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 50551001 is about 7109.9227140666. The cubic root of 50551001 is about 369.7514790816.

Adding to 50551001 its reverse (10015505), we get a palindrome (60566506).

The spelling of 50551001 in words is "fifty million, five hundred fifty-one thousand, one".