561357400 has 24 divisors (see below), whose sum is σ = 1305156420. Its totient is φ = 224542880.

The previous prime is 561357373. The next prime is 561357427. The reversal of 561357400 is 4753165.

It is an interprime number because it is at equal distance from previous prime (561357373) and next prime (561357427).

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 5 ways as a sum of consecutive naturals, for example, 1403194 + ... + 1403593.

Almost surely, 2^561357400 is an apocalyptic number.

561357400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561357400 is an abundant number, since it is smaller than the sum of its proper divisors (743799020).

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

561357400 is a wasteful number, since it uses less digits than its factorization.

561357400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806803 (or 2806794 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 561357400 is about 23692.9820833090. The cubic root of 561357400 is about 824.9225026684.

The spelling of 561357400 in words is "five hundred sixty-one million, three hundred fifty-seven thousand, four hundred".