55413400 has 48 divisors (see below), whose sum is σ = 147245040. Its totient is φ = 18998400.

The previous prime is 55413389. The next prime is 55413409. The reversal of 55413400 is 431455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55413409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18391 + ... + 21190.

It is an arithmetic number, because the mean of its divisors is an integer number (3067605).

Almost surely, 2^55413400 is an apocalyptic number.

55413400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55413400 is an abundant number, since it is smaller than the sum of its proper divisors (91831640).

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

55413400 is a wasteful number, since it uses less digits than its factorization.

55413400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39604 (or 39595 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55413400 is about 7444.0177323808. The cubic root of 55413400 is about 381.2456812196.

Adding to 55413400 its reverse (431455), we get a palindrome (55844855).

The spelling of 55413400 in words is "fifty-five million, four hundred thirteen thousand, four hundred".