53513554 has 4 divisors (see below), whose sum is σ = 80270334. Its totient is φ = 26756776.

The previous prime is 53513491. The next prime is 53513561. The reversal of 53513554 is 45531535.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 2319529 = 7155^2 + 1523^2 .

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 as a sum of consecutive naturals, namely, 13378387 + ... + 13378390.

Almost surely, 2^53513554 is an apocalyptic number.

53513554 is a deficient number, since it is larger than the sum of its proper divisors (26756780).

53513554 is a wasteful number, since it uses less digits than its factorization.

53513554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26756779.

The product of its digits is 22500, while the sum is 31.

The square root of 53513554 is about 7315.2958928535. The cubic root of 53513554 is about 376.8379202299.

The spelling of 53513554 in words is "fifty-three million, five hundred thirteen thousand, five hundred fifty-four".