53842949 has 4 divisors (see below), whose sum is σ = 53998464. Its totient is φ = 53687436.

The previous prime is 53842933. The next prime is 53842967. The reversal of 53842949 is 94924835.

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 an emirpimes, since its reverse is a distinct semiprime: 94924835 = 5 ⋅18984967.

It is a cyclic number.

It is not a de Polignac number, because 53842949 - 2⁴ = 53842933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53842909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77237 + ... + 77930.

It is an arithmetic number, because the mean of its divisors is an integer number (13499616).

Almost surely, 2^53842949 is an apocalyptic number.

It is an amenable number.

53842949 is a deficient number, since it is larger than the sum of its proper divisors (155515).

53842949 is a wasteful number, since it uses less digits than its factorization.

53842949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155514.

The product of its digits is 311040, while the sum is 44.

The square root of 53842949 is about 7337.7754803483. The cubic root of 53842949 is about 377.6095297863.

The spelling of 53842949 in words is "fifty-three million, eight hundred forty-two thousand, nine hundred forty-nine".