49215937 has 4 divisors (see below), whose sum is σ = 49230000. Its totient is φ = 49201876.

The previous prime is 49215923. The next prime is 49215977. The reversal of 49215937 is 73951294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 49215937 - 2¹¹ = 49213889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49215937.

It is not an unprimeable number, because it can be changed into a prime (49215977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814 + ... + 10312.

It is an arithmetic number, because the mean of its divisors is an integer number (12307500).

Almost surely, 2^49215937 is an apocalyptic number.

It is an amenable number.

49215937 is a deficient number, since it is larger than the sum of its proper divisors (14063).

49215937 is an equidigital number, since it uses as much as digits as its factorization.

49215937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062.

The product of its digits is 68040, while the sum is 40.

The square root of 49215937 is about 7015.4071157703. The cubic root of 49215937 is about 366.4673203827.

The spelling of 49215937 in words is "forty-nine million, two hundred fifteen thousand, nine hundred thirty-seven".