49878523 has 2 divisors, whose sum is σ = 49878524. Its totient is φ = 49878522.

The previous prime is 49878503. The next prime is 49878533. The reversal of 49878523 is 32587894.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49878523 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49878503) 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, 24939261 + 24939262.

It is an arithmetic number, because the mean of its divisors is an integer number (24939262).

Almost surely, 2^49878523 is an apocalyptic number.

49878523 is a deficient number, since it is larger than the sum of its proper divisors (1).

49878523 is an equidigital number, since it uses as much as digits as its factorization.

49878523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 49878523 is about 7062.4728672045. The cubic root of 49878523 is about 368.1045578567.

The spelling of 49878523 in words is "forty-nine million, eight hundred seventy-eight thousand, five hundred twenty-three".