47553640 has 16 divisors (see below), whose sum is σ = 106995780. Its totient is φ = 19021440.

The previous prime is 47553617. The next prime is 47553643. The reversal of 47553640 is 4635574.

It is a happy number.

47553640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46703556 + 850084 = 6834^2 + 922^2 .

It is a super-2 number, since 2×47553640² = 4522697354499200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47553596 and 47553605.

It is not an unprimeable number, because it can be changed into a prime (47553643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 594381 + ... + 594460.

Almost surely, 2^47553640 is an apocalyptic number.

47553640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47553640 is an abundant number, since it is smaller than the sum of its proper divisors (59442140).

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

47553640 is a wasteful number, since it uses less digits than its factorization.

47553640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188852 (or 1188848 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 47553640 is about 6895.9147326515. The cubic root of 47553640 is about 362.2940947177.

The spelling of 47553640 in words is "forty-seven million, five hundred fifty-three thousand, six hundred forty".