53545574 has 4 divisors (see below), whose sum is σ = 80318364. Its totient is φ = 26772786.

The previous prime is 53545567. The next prime is 53545577. The reversal of 53545574 is 47554535.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53545577) by changing a digit.

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, 13386392 + ... + 13386395.

It is an arithmetic number, because the mean of its divisors is an integer number (20079591).

Almost surely, 2^53545574 is an apocalyptic number.

53545574 is a deficient number, since it is larger than the sum of its proper divisors (26772790).

53545574 is a wasteful number, since it uses less digits than its factorization.

53545574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26772789.

The product of its digits is 210000, while the sum is 38.

The square root of 53545574 is about 7317.4841304918. The cubic root of 53545574 is about 376.9130659544.

The spelling of 53545574 in words is "fifty-three million, five hundred forty-five thousand, five hundred seventy-four".