53953719 has 4 divisors (see below), whose sum is σ = 71938296. Its totient is φ = 35969144.

The previous prime is 53953649. The next prime is 53953721. The reversal of 53953719 is 91735935.

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 53953719 - 2⁷ = 53953591 is a prime.

It is a super-2 number, since 2×53953719² = 5822007587861922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53953799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8992284 + ... + 8992289.

It is an arithmetic number, because the mean of its divisors is an integer number (17984574).

Almost surely, 2^53953719 is an apocalyptic number.

53953719 is a deficient number, since it is larger than the sum of its proper divisors (17984577).

53953719 is a wasteful number, since it uses less digits than its factorization.

53953719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17984576.

The product of its digits is 127575, while the sum is 42.

The square root of 53953719 is about 7345.3195301498. The cubic root of 53953719 is about 377.8683018713.

The spelling of 53953719 in words is "fifty-three million, nine hundred fifty-three thousand, seven hundred nineteen".