53775340531331 has 4 divisors (see below), whose sum is σ = 53775410129952. Its totient is φ = 53775270932712.

The previous prime is 53775340531327. The next prime is 53775340531411. The reversal of 53775340531331 is 13313504357735.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53775340531331 - 2² = 53775340531327 is a prime.

It is a super-2 number, since 2×53775340531331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53775340531331.

It is not an unprimeable number, because it can be changed into a prime (53775340531531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33627176 + ... + 35190021.

It is an arithmetic number, because the mean of its divisors is an integer number (13443852532488).

Almost surely, 2^{53775340531331} is an apocalyptic number.

53775340531331 is a deficient number, since it is larger than the sum of its proper divisors (69598621).

53775340531331 is an equidigital number, since it uses as much as digits as its factorization.

53775340531331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69598620.

The product of its (nonzero) digits is 5953500, while the sum is 50.

The spelling of 53775340531331 in words is "fifty-three trillion, seven hundred seventy-five billion, three hundred forty million, five hundred thirty-one thousand, three hundred thirty-one".