53552578 has 8 divisors (see below), whose sum is σ = 81844668. Its totient is φ = 26271024.

The previous prime is 53552561. The next prime is 53552591. The reversal of 53552578 is 87525535.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49378729 + 4173849 = 7027^2 + 2043^2 .

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

It is a super-2 number, since 2×53552578² = 5735757220892168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53552578.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 252501 + ... + 252712.

Almost surely, 2^53552578 is an apocalyptic number.

53552578 is a deficient number, since it is larger than the sum of its proper divisors (28292090).

53552578 is a wasteful number, since it uses less digits than its factorization.

53552578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505268.

The product of its digits is 210000, while the sum is 40.

The square root of 53552578 is about 7317.9626946302. The cubic root of 53552578 is about 376.9294992082.

The spelling of 53552578 in words is "fifty-three million, five hundred fifty-two thousand, five hundred seventy-eight".