2052172540 has 48 divisors (see below), whose sum is σ = 4747940064. Its totient is φ = 738848000.

The previous prime is 2052172531. The next prime is 2052172541. The reversal of 2052172540 is 452712502.

It is a super-2 number, since 2×2052172540² = 8422824267860103200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2052172499 and 2052172508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052172541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23959 + ... + 68398.

It is an arithmetic number, because the mean of its divisors is an integer number (98915418).

Almost surely, 2^2052172540 is an apocalyptic number.

2052172540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2052172540 is an abundant number, since it is smaller than the sum of its proper divisors (2695767524).

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

2052172540 is a wasteful number, since it uses less digits than its factorization.

2052172540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92478 (or 92476 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 2052172540 is about 45300.9110283667. The cubic root of 2052172540 is about 1270.7826907013.

The spelling of 2052172540 in words is "two billion, fifty-two million, one hundred seventy-two thousand, five hundred forty".