49494921 has 8 divisors (see below), whose sum is σ = 75420864. Its totient is φ = 28282800.

The previous prime is 49494917. The next prime is 49494953. The reversal of 49494921 is 12949494.

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

It is not a de Polignac number, because 49494921 - 2² = 49494917 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49494911) 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, 1178430 + ... + 1178471.

It is an arithmetic number, because the mean of its divisors is an integer number (9427608).

Almost surely, 2^49494921 is an apocalyptic number.

It is an amenable number.

49494921 is a deficient number, since it is larger than the sum of its proper divisors (25925943).

49494921 is a wasteful number, since it uses less digits than its factorization.

49494921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356911.

The product of its digits is 93312, while the sum is 42.

The square root of 49494921 is about 7035.2626816630. The cubic root of 49494921 is about 367.1584646822.

It can be divided in two parts, 4949 and 4921, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 49494921 in words is "forty-nine million, four hundred ninety-four thousand, nine hundred twenty-one".