53540156130621 has 16 divisors (see below), whose sum is σ = 71452026676800. Its totient is φ = 35660873058048.

The previous prime is 53540156130619. The next prime is 53540156130691. The reversal of 53540156130621 is 12603165104535.

It is a happy number.

It is not a de Polignac number, because 53540156130621 - 2¹ = 53540156130619 is a prime.

It is a super-3 number, since 3×53540156130621³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53540156130691) 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, 17127690 + ... + 20010948.

It is an arithmetic number, because the mean of its divisors is an integer number (4465751667300).

Almost surely, 2^{53540156130621} is an apocalyptic number.

It is an amenable number.

53540156130621 is a deficient number, since it is larger than the sum of its proper divisors (17911870546179).

53540156130621 is a wasteful number, since it uses less digits than its factorization.

53540156130621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888908.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 53540156130621 in words is "fifty-three trillion, five hundred forty billion, one hundred fifty-six million, one hundred thirty thousand, six hundred twenty-one".