49000001 has 8 divisors (see below), whose sum is σ = 52185384. Its totient is φ = 45848320.

The previous prime is 48999989. The next prime is 49000027. The reversal of 49000001 is 10000094.

It is a Cunningham number, because it is equal to 7000²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 24010000 + 24990001 = 4900^2 + 4999^2 .

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

It is not a de Polignac number, because 49000001 - 2¹⁴ = 48983617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49000001.

It is not an unprimeable number, because it can be changed into a prime (49000201) 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, 5390 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (6523173).

Almost surely, 2^49000001 is an apocalyptic number.

It is an amenable number.

49000001 is a deficient number, since it is larger than the sum of its proper divisors (3185383).

49000001 is a wasteful number, since it uses less digits than its factorization.

49000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 49000001 is about 7000.0000714286. Note that the first 4 decimals coincide. The cubic root of 49000001 is about 365.9305734916.

Adding to 49000001 its reverse (10000094), we get a palindrome (59000095).

The spelling of 49000001 in words is "forty-nine million, one", and thus it is an aban number and an uban number.