49279651 has 4 divisors (see below), whose sum is σ = 52178472. Its totient is φ = 46380832.

The previous prime is 49279619. The next prime is 49279661. The reversal of 49279651 is 15697294.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 49279651 - 2⁵ = 49279619 is a prime.

It is a super-3 number, since 3×49279651³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49279598 and 49279607.

It is not an unprimeable number, because it can be changed into a prime (49279661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449385 + ... + 1449418.

It is an arithmetic number, because the mean of its divisors is an integer number (13044618).

Almost surely, 2^49279651 is an apocalyptic number.

49279651 is a deficient number, since it is larger than the sum of its proper divisors (2898821).

49279651 is a wasteful number, since it uses less digits than its factorization.

49279651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898820.

The product of its digits is 136080, while the sum is 43.

The square root of 49279651 is about 7019.9466522189. The cubic root of 49279651 is about 366.6253926912.

The spelling of 49279651 in words is "forty-nine million, two hundred seventy-nine thousand, six hundred fifty-one".