49719951 has 48 divisors (see below), whose sum is σ = 80870400. Its totient is φ = 29272320.

The previous prime is 49719947. The next prime is 49719953. The reversal of 49719951 is 15991794.

It is not a de Polignac number, because 49719951 - 2² = 49719947 is a prime.

It is a super-4 number, since 4×49719951⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49719897 and 49719906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49719953) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249750 + ... + 249948.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^49719951 is an apocalyptic number.

49719951 is a deficient number, since it is larger than the sum of its proper divisors (31150449).

49719951 is a wasteful number, since it uses less digits than its factorization.

49719951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 313 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 49719951 is about 7051.2375509552. The cubic root of 49719951 is about 367.7140554989.

The spelling of 49719951 in words is "forty-nine million, seven hundred nineteen thousand, nine hundred fifty-one".