53213456434 has 8 divisors (see below), whose sum is σ = 80913612060. Its totient is φ = 26242252416.

The previous prime is 53213456407. The next prime is 53213456437. The reversal of 53213456434 is 43465431235.

It can be written as a sum of positive squares in 2 ways, for example, as 52580783025 + 632673409 = 229305^2 + 25153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53213456437) 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, 182237719 + ... + 182238010.

Almost surely, 2^53213456434 is an apocalyptic number.

53213456434 is a deficient number, since it is larger than the sum of its proper divisors (27700155626).

53213456434 is a wasteful number, since it uses less digits than its factorization.

53213456434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364475804.

The product of its digits is 518400, while the sum is 40.

Adding to 53213456434 its reverse (43465431235), we get a palindrome (96678887669).

The spelling of 53213456434 in words is "fifty-three billion, two hundred thirteen million, four hundred fifty-six thousand, four hundred thirty-four".