53719431 has 4 divisors (see below), whose sum is σ = 71625912. Its totient is φ = 35812952.

The previous prime is 53719429. The next prime is 53719433. The reversal of 53719431 is 13491735.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53719429) and next prime (53719433).

It is a cyclic number.

It is not a de Polignac number, because 53719431 - 2¹ = 53719429 is a prime.

It is a super-2 number, since 2×53719431² = 5771554533927522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53719392 and 53719401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53719433) 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, 8953236 + ... + 8953241.

It is an arithmetic number, because the mean of its divisors is an integer number (17906478).

Almost surely, 2^53719431 is an apocalyptic number.

53719431 is a deficient number, since it is larger than the sum of its proper divisors (17906481).

53719431 is a wasteful number, since it uses less digits than its factorization.

53719431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17906480.

The product of its digits is 11340, while the sum is 33.

The square root of 53719431 is about 7329.3540643088. The cubic root of 53719431 is about 377.3205579636.

The spelling of 53719431 in words is "fifty-three million, seven hundred nineteen thousand, four hundred thirty-one".