53146642531 has 8 divisors (see below), whose sum is σ = 53977017600. Its totient is φ = 52318540680.

The previous prime is 53146642519. The next prime is 53146642537. The reversal of 53146642531 is 13524664135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53146642531 - 2⁷ = 53146642403 is a prime.

It is a super-2 number, since 2×53146642531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53146642537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521151 + ... + 614728.

It is an arithmetic number, because the mean of its divisors is an integer number (6747127200).

Almost surely, 2^53146642531 is an apocalyptic number.

53146642531 is a deficient number, since it is larger than the sum of its proper divisors (830375069).

53146642531 is a wasteful number, since it uses less digits than its factorization.

53146642531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136609.

The product of its digits is 259200, while the sum is 40.

The spelling of 53146642531 in words is "fifty-three billion, one hundred forty-six million, six hundred forty-two thousand, five hundred thirty-one".