2187517552 has 80 divisors (see below), whose sum is σ = 4769373312. Its totient is φ = 963221760.

The previous prime is 2187517547. The next prime is 2187517613. The reversal of 2187517552 is 2557157812.

It is a junction number, because it is equal to n+sod(n) for n = 2187517499 and 2187517508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842303 + ... + 1843489.

Almost surely, 2^2187517552 is an apocalyptic number.

2187517552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187517552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384686656).

2187517552 is an abundant number, since it is smaller than the sum of its proper divisors (2581855760).

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

2187517552 is a wasteful number, since it uses less digits than its factorization.

2187517552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1520 counting only the distinct ones).

The product of its digits is 196000, while the sum is 43.

The square root of 2187517552 is about 46770.9049730706. The cubic root of 2187517552 is about 1298.1269974023.

The spelling of 2187517552 in words is "two billion, one hundred eighty-seven million, five hundred seventeen thousand, five hundred fifty-two".