53779938 has 16 divisors (see below), whose sum is σ = 109848960. Its totient is φ = 17545136.

The previous prime is 53779919. The next prime is 53779939. The reversal of 53779938 is 83997735.

It is a happy number.

It is a super-3 number, since 3×53779938³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53779939) 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, 95073 + ... + 95636.

It is an arithmetic number, because the mean of its divisors is an integer number (6865560).

Almost surely, 2^53779938 is an apocalyptic number.

53779938 is an abundant number, since it is smaller than the sum of its proper divisors (56069022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53779938 is a wasteful number, since it uses less digits than its factorization.

53779938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190761.

The product of its digits is 1428840, while the sum is 51.

The square root of 53779938 is about 7333.4806197330. The cubic root of 53779938 is about 377.4621700904.

The spelling of 53779938 in words is "fifty-three million, seven hundred seventy-nine thousand, nine hundred thirty-eight".