53015442420 has 48 divisors (see below), whose sum is σ = 150658820928. Its totient is φ = 13926443520.

The previous prime is 53015442407. The next prime is 53015442421. The reversal of 53015442420 is 2424451035.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015442421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6589941 + ... + 6597980.

It is an arithmetic number, because the mean of its divisors is an integer number (3138725436).

Almost surely, 2^53015442420 is an apocalyptic number.

It is an amenable number.

53015442420 is an abundant number, since it is smaller than the sum of its proper divisors (97643378508).

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

53015442420 is a wasteful number, since it uses less digits than its factorization.

53015442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13188000 (or 13187998 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 53015442420 its reverse (2424451035), we get a palindrome (55439893455).

The spelling of 53015442420 in words is "fifty-three billion, fifteen million, four hundred forty-two thousand, four hundred twenty".