49561001 has 12 divisors (see below), whose sum is σ = 61044948. Its totient is φ = 39981312.

The previous prime is 49560947. The next prime is 49561051. The reversal of 49561001 is 10016594.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 15642025 = 5824^2 + 3955^2 .

It is not a de Polignac number, because 49561001 - 2⁶ = 49560937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49561051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28916 + ... + 30581.

It is an arithmetic number, because the mean of its divisors is an integer number (5087079).

Almost surely, 2^49561001 is an apocalyptic number.

It is an amenable number.

49561001 is a deficient number, since it is larger than the sum of its proper divisors (11483947).

49561001 is a wasteful number, since it uses less digits than its factorization.

49561001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59528 (or 59521 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 49561001 is about 7039.9574572578. The cubic root of 49561001 is about 367.3217881212.

Adding to 49561001 its reverse (10016594), we get a palindrome (59577595).

It can be divided in two parts, 49 and 561001, that multiplied together give a square (27489049 = 5243²).

The spelling of 49561001 in words is "forty-nine million, five hundred sixty-one thousand, one".