56552250 has 32 divisors (see below), whose sum is σ = 141156288. Its totient is φ = 15080400.

The previous prime is 56552231. The next prime is 56552257. The reversal of 56552250 is 5225565.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (56552257) 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 15 ways as a sum of consecutive naturals, for example, 36952 + ... + 38451.

It is an arithmetic number, because the mean of its divisors is an integer number (4411134).

Almost surely, 2^56552250 is an apocalyptic number.

56552250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56552250 is an abundant number, since it is smaller than the sum of its proper divisors (84604038).

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

56552250 is a wasteful number, since it uses less digits than its factorization.

56552250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75423 (or 75413 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 56552250 is about 7520.1230043132. The cubic root of 56552250 is about 383.8397633319.

The spelling of 56552250 in words is "fifty-six million, five hundred fifty-two thousand, two hundred fifty".