2555432400 has 60 divisors (see below), whose sum is σ = 8185905632. Its totient is φ = 681448320.

The previous prime is 2555432389. The next prime is 2555432419. The reversal of 2555432400 is 42345552.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063564 + ... + 1065963.

Almost surely, 2^2555432400 is an apocalyptic number.

2555432400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555432400 is an abundant number, since it is smaller than the sum of its proper divisors (5630473232).

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

2555432400 is a wasteful number, since it uses less digits than its factorization.

2555432400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129548 (or 2129537 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 2555432400 is about 50551.2848501401. The cubic root of 2555432400 is about 1367.1666806800.

Adding to 2555432400 its reverse (42345552), we get a palindrome (2597777952).

The spelling of 2555432400 in words is "two billion, five hundred fifty-five million, four hundred thirty-two thousand, four hundred".