53394939 has 12 divisors (see below), whose sum is σ = 83058976. Its totient is φ = 32858352.

The previous prime is 53394931. The next prime is 53394973. The reversal of 53394939 is 93949335.

It is not a de Polignac number, because 53394939 - 2³ = 53394931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53394894 and 53394903.

It is not an unprimeable number, because it can be changed into a prime (53394931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228067 + ... + 228300.

Almost surely, 2^53394939 is an apocalyptic number.

53394939 is a deficient number, since it is larger than the sum of its proper divisors (29664037).

53394939 is a wasteful number, since it uses less digits than its factorization.

53394939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456386 (or 456383 counting only the distinct ones).

The product of its digits is 393660, while the sum is 45.

The square root of 53394939 is about 7307.1840677514. The cubic root of 53394939 is about 376.5592886637.

The spelling of 53394939 in words is "fifty-three million, three hundred ninety-four thousand, nine hundred thirty-nine".