53440404542 has 32 divisors (see below), whose sum is σ = 92454912000. Its totient is φ = 22692475008.

The previous prime is 53440404503. The next prime is 53440404551. The reversal of 53440404542 is 24540404435.

It is a super-2 number, since 2×53440404542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8094959 + ... + 8101557.

It is an arithmetic number, because the mean of its divisors is an integer number (2889216000).

Almost surely, 2^53440404542 is an apocalyptic number.

53440404542 is a deficient number, since it is larger than the sum of its proper divisors (39014507458).

53440404542 is a wasteful number, since it uses less digits than its factorization.

53440404542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840.

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 53440404542 its reverse (24540404435), we get a palindrome (77980808977).

The spelling of 53440404542 in words is "fifty-three billion, four hundred forty million, four hundred four thousand, five hundred forty-two".