56461400 has 24 divisors (see below), whose sum is σ = 131273220. Its totient is φ = 22584480.

The previous prime is 56461397. The next prime is 56461409. The reversal of 56461400 is 416465.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56461400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56461409) 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, 140954 + ... + 141353.

Almost surely, 2^56461400 is an apocalyptic number.

56461400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56461400 is an abundant number, since it is smaller than the sum of its proper divisors (74811820).

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

56461400 is a wasteful number, since it uses less digits than its factorization.

56461400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282323 (or 282314 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 56461400 is about 7514.0801166876. The cubic root of 56461400 is about 383.6341096647.

Adding to 56461400 its reverse (416465), we get a palindrome (56877865).

The spelling of 56461400 in words is "fifty-six million, four hundred sixty-one thousand, four hundred".