49440253 has 2 divisors, whose sum is σ = 49440254. Its totient is φ = 49440252.

The previous prime is 49440247. The next prime is 49440277. The reversal of 49440253 is 35204494.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49308484 + 131769 = 7022^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 49440253 - 2¹⁷ = 49309181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49446253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24720126 + 24720127.

It is an arithmetic number, because the mean of its divisors is an integer number (24720127).

Almost surely, 2^49440253 is an apocalyptic number.

It is an amenable number.

49440253 is a deficient number, since it is larger than the sum of its proper divisors (1).

49440253 is an equidigital number, since it uses as much as digits as its factorization.

49440253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 49440253 is about 7031.3763233097. The cubic root of 49440253 is about 367.0232372490.

The spelling of 49440253 in words is "forty-nine million, four hundred forty thousand, two hundred fifty-three".