53645515051 has 4 divisors (see below), whose sum is σ = 53738488792. Its totient is φ = 53552541312.

The previous prime is 53645514977. The next prime is 53645515067. The reversal of 53645515051 is 15051554635.

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 53645515051 - 2³³ = 45055580459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53645514995 and 53645515013.

It is not an unprimeable number, because it can be changed into a prime (53645525051) 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 3 ways as a sum of consecutive naturals, for example, 46486005 + ... + 46487158.

It is an arithmetic number, because the mean of its divisors is an integer number (13434622198).

Almost surely, 2^53645515051 is an apocalyptic number.

53645515051 is a deficient number, since it is larger than the sum of its proper divisors (92973741).

53645515051 is an equidigital number, since it uses as much as digits as its factorization.

53645515051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92973740.

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 53645515051 in words is "fifty-three billion, six hundred forty-five million, five hundred fifteen thousand, fifty-one".