53499994 has 4 divisors (see below), whose sum is σ = 80249994. Its totient is φ = 26749996.

The previous prime is 53499967. The next prime is 53499997. The reversal of 53499994 is 49999435.

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., 49350625 + 4149369 = 7025^2 + 2037^2 .

It is a super-3 number, since 3×53499994³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (53499997) 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, 13374997 + ... + 13375000.

Almost surely, 2^53499994 is an apocalyptic number.

53499994 is a deficient number, since it is larger than the sum of its proper divisors (26750000).

53499994 is a wasteful number, since it uses less digits than its factorization.

53499994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26749999.

The product of its digits is 1574640, while the sum is 52.

The square root of 53499994 is about 7314.3690090123. The cubic root of 53499994 is about 376.8060880834.

The spelling of 53499994 in words is "fifty-three million, four hundred ninety-nine thousand, nine hundred ninety-four".