53540015215 has 24 divisors (see below), whose sum is σ = 67512957840. Its totient is φ = 40747570560.

The previous prime is 53540015171. The next prime is 53540015257. The reversal of 53540015215 is 51251004535.

It is not a de Polignac number, because 53540015215 - 2¹¹ = 53540013167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189067 + ... + 377923.

It is an arithmetic number, because the mean of its divisors is an integer number (2813039910).

Almost surely, 2^53540015215 is an apocalyptic number.

53540015215 is a deficient number, since it is larger than the sum of its proper divisors (13972942625).

53540015215 is a wasteful number, since it uses less digits than its factorization.

53540015215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188983 (or 188952 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 53540015215 in words is "fifty-three billion, five hundred forty million, fifteen thousand, two hundred fifteen".