20551255251310 has 64 divisors (see below), whose sum is σ = 42390523348992. Its totient is φ = 7027218164736.

The previous prime is 20551255251301. The next prime is 20551255251311. The reversal of 20551255251310 is 1315255215502.

It is a super-2 number, since 2×20551255251310² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20551255251310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20551255251311) 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 31 ways as a sum of consecutive naturals, for example, 61639614 + ... + 61972126.

It is an arithmetic number, because the mean of its divisors is an integer number (662351927328).

Almost surely, 2^{20551255251310} is an apocalyptic number.

20551255251310 is an abundant number, since it is smaller than the sum of its proper divisors (21839268097682).

20551255251310 is a wasteful number, since it uses less digits than its factorization.

20551255251310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334897.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 20551255251310 in words is "twenty trillion, five hundred fifty-one billion, two hundred fifty-five million, two hundred fifty-one thousand, three hundred ten".