53213405145504 has 48 divisors (see below), whose sum is σ = 140751487689120. Its totient is φ = 17602398644480.

The previous prime is 53213405145503. The next prime is 53213405145569. The reversal of 53213405145504 is 40554150431235.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×53213405145504² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53213405145503) 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, 2115660339 + ... + 2115685490.

It is an arithmetic number, because the mean of its divisors is an integer number (2932322660190).

Almost surely, 2^{53213405145504} is an apocalyptic number.

It is an amenable number.

53213405145504 is an abundant number, since it is smaller than the sum of its proper divisors (87538082543616).

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

53213405145504 is a wasteful number, since it uses less digits than its factorization.

53213405145504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231345973 (or 4231345965 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 53213405145504 its reverse (40554150431235), we get a palindrome (93767555576739).

The spelling of 53213405145504 in words is "fifty-three trillion, two hundred thirteen billion, four hundred five million, one hundred forty-five thousand, five hundred four".