2555432020 has 48 divisors (see below), whose sum is σ = 5657557248. Its totient is φ = 967633920.

The previous prime is 2555431987. The next prime is 2555432053. The reversal of 2555432020 is 202345552.

It is an interprime number because it is at equal distance from previous prime (2555431987) and next prime (2555432053).

It is a self number, because there is not a number n which added to its sum of digits gives 2555432020.

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, 15985 + ... + 73255.

It is an arithmetic number, because the mean of its divisors is an integer number (117865776).

Almost surely, 2^2555432020 is an apocalyptic number.

2555432020 is a gapful number since it is divisible by the number (20) 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 2555432020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2828778624).

2555432020 is an abundant number, since it is smaller than the sum of its proper divisors (3102125228).

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

2555432020 is a wasteful number, since it uses less digits than its factorization.

2555432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57400 (or 57398 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2555432020 is about 50551.2810915807. The cubic root of 2555432020 is about 1367.1666129128.

Adding to 2555432020 its reverse (202345552), we get a palindrome (2757777572).

The spelling of 2555432020 in words is "two billion, five hundred fifty-five million, four hundred thirty-two thousand, twenty".