51106524645 has 16 divisors (see below), whose sum is σ = 89204116032. Its totient is φ = 24778920960.

The previous prime is 51106524617. The next prime is 51106524649. The reversal of 51106524645 is 54642560115.

It is not a de Polignac number, because 51106524645 - 2¹⁶ = 51106459109 is a prime.

It is a super-2 number, since 2×51106524645² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106524649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 154868092 + ... + 154868421.

It is an arithmetic number, because the mean of its divisors is an integer number (5575257252).

Almost surely, 2^51106524645 is an apocalyptic number.

51106524645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51106524645 is a deficient number, since it is larger than the sum of its proper divisors (38097591387).

51106524645 is a wasteful number, since it uses less digits than its factorization.

51106524645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309736532.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 51106524645 in words is "fifty-one billion, one hundred six million, five hundred twenty-four thousand, six hundred forty-five".