2153545020500 has 24 divisors (see below), whose sum is σ = 4703342325864. Its totient is φ = 861418008000.

The previous prime is 2153545020499. The next prime is 2153545020521. The reversal of 2153545020500 is 50205453512.

It can be written as a sum of positive squares in 4 ways, for example, as 540324964624 + 1613220055876 = 735068^2 + 1270126^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153544521 + ... + 2153545520.

It is an arithmetic number, because the mean of its divisors is an integer number (195972596911).

Almost surely, 2^{2153545020500} is an apocalyptic number.

2153545020500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153545020500 is an abundant number, since it is smaller than the sum of its proper divisors (2549797305364).

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

2153545020500 is a wasteful number, since it uses less digits than its factorization.

2153545020500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307090060 (or 4307090048 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 2153545020500 in words is "two trillion, one hundred fifty-three billion, five hundred forty-five million, twenty thousand, five hundred".