49572181 has 2 divisors, whose sum is σ = 49572182. Its totient is φ = 49572180.

The previous prime is 49572109. The next prime is 49572191. The reversal of 49572181 is 18127594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35509681 + 14062500 = 5959^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 49572181 - 2¹⁹ = 49047893 is a prime.

It is a super-2 number, since 2×49572181² = 4914802258193522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49572181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49572101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24786090 + 24786091.

It is an arithmetic number, because the mean of its divisors is an integer number (24786091).

Almost surely, 2^49572181 is an apocalyptic number.

It is an amenable number.

49572181 is a deficient number, since it is larger than the sum of its proper divisors (1).

49572181 is an equidigital number, since it uses as much as digits as its factorization.

49572181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The square root of 49572181 is about 7040.7514513722. The cubic root of 49572181 is about 367.3494062669.

The spelling of 49572181 in words is "forty-nine million, five hundred seventy-two thousand, one hundred eighty-one".