49977995 has 4 divisors (see below), whose sum is σ = 59973600. Its totient is φ = 39982392.

The previous prime is 49977959. The next prime is 49978001. The reversal of 49977995 is 59977994.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49977995 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4997795 + ... + 4997804.

It is an arithmetic number, because the mean of its divisors is an integer number (14993400).

Almost surely, 2^49977995 is an apocalyptic number.

49977995 is a deficient number, since it is larger than the sum of its proper divisors (9995605).

49977995 is an equidigital number, since it uses as much as digits as its factorization.

49977995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995604.

The product of its digits is 6429780, while the sum is 59.

The square root of 49977995 is about 7069.5116521582. The cubic root of 49977995 is about 368.3490971917.

Subtracting 49977995 from its reverse (59977994), we obtain a palindrome (9999999).

The spelling of 49977995 in words is "forty-nine million, nine hundred seventy-seven thousand, nine hundred ninety-five".