53145133532 has 12 divisors (see below), whose sum is σ = 93574561416. Its totient is φ = 26409544560.

The previous prime is 53145133523. The next prime is 53145133543. The reversal of 53145133532 is 23533154135.

It is a happy number.

It is a super-2 number, since 2×53145133532² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53145133492 and 53145133501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40754819 + ... + 40756122.

It is an arithmetic number, because the mean of its divisors is an integer number (7797880118).

Almost surely, 2^53145133532 is an apocalyptic number.

It is an amenable number.

53145133532 is a deficient number, since it is larger than the sum of its proper divisors (40429427884).

53145133532 is a wasteful number, since it uses less digits than its factorization.

53145133532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81511108 (or 81511106 counting only the distinct ones).

The product of its digits is 81000, while the sum is 35.

Adding to 53145133532 its reverse (23533154135), we get a palindrome (76678287667).

The spelling of 53145133532 in words is "fifty-three billion, one hundred forty-five million, one hundred thirty-three thousand, five hundred thirty-two".