49688491 has 2 divisors, whose sum is σ = 49688492. Its totient is φ = 49688490.

The previous prime is 49688479. The next prime is 49688503. The reversal of 49688491 is 19488694.

It is a balanced prime because it is at equal distance from previous prime (49688479) and next prime (49688503).

It is a cyclic number.

It is not a de Polignac number, because 49688491 - 2¹¹ = 49686443 is a prime.

It is a super-2 number, since 2×49688491² = 4937892275714162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49688411) 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, 24844245 + 24844246.

It is an arithmetic number, because the mean of its divisors is an integer number (24844246).

Almost surely, 2^49688491 is an apocalyptic number.

49688491 is a deficient number, since it is larger than the sum of its proper divisors (1).

49688491 is an equidigital number, since it uses as much as digits as its factorization.

49688491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 49.

The square root of 49688491 is about 7049.0063838813. The cubic root of 49688491 is about 367.6364828496.

The spelling of 49688491 in words is "forty-nine million, six hundred eighty-eight thousand, four hundred ninety-one".