20255520700 has 36 divisors (see below), whose sum is σ = 43972888680. Its totient is φ = 8098815040.

The previous prime is 20255520667. The next prime is 20255520713. The reversal of 20255520700 is 702555202.

It is a super-2 number, since 2×20255520700² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204714 + ... + 287086.

It is an arithmetic number, because the mean of its divisors is an integer number (1221469130).

Almost surely, 2^20255520700 is an apocalyptic number.

20255520700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20255520700 is an abundant number, since it is smaller than the sum of its proper divisors (23717367980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20255520700 is a wasteful number, since it uses less digits than its factorization.

20255520700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84846 (or 84839 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The spelling of 20255520700 in words is "twenty billion, two hundred fifty-five million, five hundred twenty thousand, seven hundred".