552405400 has 24 divisors (see below), whose sum is σ = 1284343020. Its totient is φ = 220962080.

The previous prime is 552405383. The next prime is 552405409. The reversal of 552405400 is 4504255.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552405409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1380814 + ... + 1381213.

Almost surely, 2^552405400 is an apocalyptic number.

552405400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

552405400 is an abundant number, since it is smaller than the sum of its proper divisors (731937620).

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

552405400 is a wasteful number, since it uses less digits than its factorization.

552405400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762043 (or 2762034 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 552405400 is about 23503.3061504121. The cubic root of 552405400 is about 820.5139550148.

Adding to 552405400 its reverse (4504255), we get a palindrome (556909655).

The spelling of 552405400 in words is "five hundred fifty-two million, four hundred five thousand, four hundred".