49405637 has 2 divisors, whose sum is σ = 49405638. Its totient is φ = 49405636.

The previous prime is 49405583. The next prime is 49405639. The reversal of 49405637 is 73650494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39363076 + 10042561 = 6274^2 + 3169^2 .

It is a cyclic number.

It is not a de Polignac number, because 49405637 - 2¹⁴ = 49389253 is a prime.

Together with 49405639, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49405637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49405639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24702818 + 24702819.

It is an arithmetic number, because the mean of its divisors is an integer number (24702819).

Almost surely, 2^49405637 is an apocalyptic number.

It is an amenable number.

49405637 is a deficient number, since it is larger than the sum of its proper divisors (1).

49405637 is an equidigital number, since it uses as much as digits as its factorization.

49405637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 49405637 is about 7028.9143542940. The cubic root of 49405637 is about 366.9375591365.

The spelling of 49405637 in words is "forty-nine million, four hundred five thousand, six hundred thirty-seven".