52640554 has 8 divisors (see below), whose sum is σ = 80450820. Its totient is φ = 25823616.

The previous prime is 52640543. The next prime is 52640587. The reversal of 52640554 is 45504625.

52640554 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 51480625 + 1159929 = 7175^2 + 1077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 248199 + ... + 248410.

Almost surely, 2^52640554 is an apocalyptic number.

52640554 is a deficient number, since it is larger than the sum of its proper divisors (27810266).

52640554 is a wasteful number, since it uses less digits than its factorization.

52640554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496664.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 52640554 is about 7255.3810375472. The cubic root of 52640554 is about 374.7774774642. Note that the first 3 decimals are identical.

The spelling of 52640554 in words is "fifty-two million, six hundred forty thousand, five hundred fifty-four".