56102500 has 30 divisors (see below), whose sum is σ = 122690414. Its totient is φ = 22440000.

The previous prime is 56102491. The next prime is 56102503. The reversal of 56102500 is 520165.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 38663524 + 17438976 = 6218^2 + 4176^2 .

It is not an unprimeable number, because it can be changed into a prime (56102503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8721 + ... + 13720.

Almost surely, 2^56102500 is an apocalyptic number.

56102500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56102500 is an abundant number, since it is smaller than the sum of its proper divisors (66587914).

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

56102500 is a wasteful number, since it uses less digits than its factorization.

56102500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22465 (or 22448 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 56102500 is about 7490.1602119047. The cubic root of 56102500 is about 382.8195174335.

Adding to 56102500 its reverse (520165), we get a palindrome (56622665).

The spelling of 56102500 in words is "fifty-six million, one hundred two thousand, five hundred".