2154325020 has 48 divisors (see below), whose sum is σ = 6062763168. Its totient is φ = 571567360.

The previous prime is 2154325007. The next prime is 2154325021. The reversal of 2154325020 is 205234512.

It is a super-2 number, since 2×2154325020² = 9282232583596000800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154325021) 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, 79311 + ... + 102950.

It is an arithmetic number, because the mean of its divisors is an integer number (126307566).

Almost surely, 2^2154325020 is an apocalyptic number.

2154325020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154325020 is an abundant number, since it is smaller than the sum of its proper divisors (3908438148).

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

2154325020 is a wasteful number, since it uses less digits than its factorization.

2154325020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182470 (or 182468 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2154325020 is about 46414.7069364873. The cubic root of 2154325020 is about 1291.5277494907.

Adding to 2154325020 its reverse (205234512), we get a palindrome (2359559532).

The spelling of 2154325020 in words is "two billion, one hundred fifty-four million, three hundred twenty-five thousand, twenty".