1554225400 has 144 divisors (see below), whose sum is σ = 4472593200. Its totient is φ = 491811840.

The previous prime is 1554225389. The next prime is 1554225419. The reversal of 1554225400 is 45224551.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233316 + ... + 239884.

It is an arithmetic number, because the mean of its divisors is an integer number (31059675).

Almost surely, 2^1554225400 is an apocalyptic number.

1554225400 is a gapful number since it is divisible by the number (10) 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 1554225400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236296600).

1554225400 is an abundant number, since it is smaller than the sum of its proper divisors (2918367800).

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

1554225400 is a wasteful number, since it uses less digits than its factorization.

1554225400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618 (or 6596 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1554225400 is about 39423.6654815353. The cubic root of 1554225400 is about 1158.3451929615.

Adding to 1554225400 its reverse (45224551), we get a palindrome (1599449951).

The spelling of 1554225400 in words is "one billion, five hundred fifty-four million, two hundred twenty-five thousand, four hundred".