561002454 has 24 divisors (see below), whose sum is σ = 1216258680. Its totient is φ = 186884928.

The previous prime is 561002437. The next prime is 561002461. The reversal of 561002454 is 454200165.

561002454 is a `hidden beast` number, since 5 + 610 + 0 + 2 + 45 + 4 = 666.

561002454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23217 + ... + 40755.

It is an arithmetic number, because the mean of its divisors is an integer number (50677445).

Almost surely, 2^561002454 is an apocalyptic number.

561002454 is an abundant number, since it is smaller than the sum of its proper divisors (655256226).

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

561002454 is a wasteful number, since it uses less digits than its factorization.

561002454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19324 (or 19321 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 561002454 is about 23685.4903685780. The cubic root of 561002454 is about 824.7485999834.

The spelling of 561002454 in words is "five hundred sixty-one million, two thousand, four hundred fifty-four".