49191951 has 8 divisors (see below), whose sum is σ = 66170160. Its totient is φ = 32504192.

The previous prime is 49191943. The next prime is 49191953. The reversal of 49191951 is 15919194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49191951 - 2³ = 49191943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49191953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72216 + ... + 72893.

It is an arithmetic number, because the mean of its divisors is an integer number (8271270).

Almost surely, 2^49191951 is an apocalyptic number.

49191951 is a deficient number, since it is larger than the sum of its proper divisors (16978209).

49191951 is a wasteful number, since it uses less digits than its factorization.

49191951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145225.

The product of its digits is 14580, while the sum is 39.

The square root of 49191951 is about 7013.6973844043. The cubic root of 49191951 is about 366.4077765705.

The spelling of 49191951 in words is "forty-nine million, one hundred ninety-one thousand, nine hundred fifty-one".