49529978 has 4 divisors (see below), whose sum is σ = 74294970. Its totient is φ = 24764988.

The previous prime is 49529947. The next prime is 49529981. The reversal of 49529978 is 87992594.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49519369 + 10609 = 7037^2 + 103^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12382493 + ... + 12382496.

Almost surely, 2^49529978 is an apocalyptic number.

49529978 is a deficient number, since it is larger than the sum of its proper divisors (24764992).

49529978 is a wasteful number, since it uses less digits than its factorization.

49529978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24764991.

The product of its digits is 1632960, while the sum is 53.

The square root of 49529978 is about 7037.7537609666. The cubic root of 49529978 is about 367.2451297130.

The spelling of 49529978 in words is "forty-nine million, five hundred twenty-nine thousand, nine hundred seventy-eight".