53013521155 has 24 divisors (see below), whose sum is σ = 75723552432. Its totient is φ = 35506723392.

The previous prime is 53013521117. The next prime is 53013521279. The reversal of 53013521155 is 55112531035.

It is not a de Polignac number, because 53013521155 - 2¹⁷ = 53013390083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2505532 + ... + 2526601.

It is an arithmetic number, because the mean of its divisors is an integer number (3155148018).

Almost surely, 2^53013521155 is an apocalyptic number.

53013521155 is a deficient number, since it is larger than the sum of its proper divisors (22710031277).

53013521155 is a wasteful number, since it uses less digits than its factorization.

53013521155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032195 (or 5032188 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 53013521155 in words is "fifty-three billion, thirteen million, five hundred twenty-one thousand, one hundred fifty-five".