56510454 has 96 divisors (see below), whose sum is σ = 153328896. Its totient is φ = 13409280.

The previous prime is 56510453. The next prime is 56510459. The reversal of 56510454 is 45401565.

It is a super-2 number, since 2×56510454² = 6386862822572232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56510453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 582534 + ... + 582630.

It is an arithmetic number, because the mean of its divisors is an integer number (1597176).

Almost surely, 2^56510454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56510454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76664448).

56510454 is an abundant number, since it is smaller than the sum of its proper divisors (96818442).

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

56510454 is a wasteful number, since it uses less digits than its factorization.

56510454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 56510454 is about 7517.3435467591. The cubic root of 56510454 is about 383.7451787035.

Subtracting from 56510454 its reverse (45401565), we obtain a square (11108889 = 3333²).

The spelling of 56510454 in words is "fifty-six million, five hundred ten thousand, four hundred fifty-four".