53671224749 has 4 divisors (see below), whose sum is σ = 53702412540. Its totient is φ = 53640036960.

The previous prime is 53671224721. The next prime is 53671224751. The reversal of 53671224749 is 94742217635.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28483312900 + 25187911849 = 168770^2 + 158707^2 .

It is a cyclic number.

It is not a de Polignac number, because 53671224749 - 2²⁴ = 53654447533 is a prime.

It is a super-2 number, since 2×53671224749² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53671224697 and 53671224706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53671224769) 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, 15591314 + ... + 15594755.

It is an arithmetic number, because the mean of its divisors is an integer number (13425603135).

Almost surely, 2^53671224749 is an apocalyptic number.

It is an amenable number.

53671224749 is a deficient number, since it is larger than the sum of its proper divisors (31187791).

53671224749 is a wasteful number, since it uses less digits than its factorization.

53671224749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31187790.

The product of its digits is 2540160, while the sum is 50.

The spelling of 53671224749 in words is "fifty-three billion, six hundred seventy-one million, two hundred twenty-four thousand, seven hundred forty-nine".