53694612 has 18 divisors (see below), whose sum is σ = 135728138. Its totient is φ = 17898192.

The previous prime is 53694611. The next prime is 53694623. The reversal of 53694612 is 21649635.

It is a happy number.

53694612 is a `hidden beast` number, since 5 + 36 + 9 + 4 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53670276 + 24336 = 7326^2 + 156^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×53694612² = 5766222715661088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1491517 = 53694612 / (5 + 3 + 6 + 9 + 4 + 6 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53694611) 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 in 5 ways as a sum of consecutive naturals, for example, 745723 + ... + 745794.

Almost surely, 2^53694612 is an apocalyptic number.

It is an amenable number.

53694612 is an abundant number, since it is smaller than the sum of its proper divisors (82033526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53694612 is a wasteful number, since it uses less digits than its factorization.

53694612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491527 (or 1491522 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 53694612 is about 7327.6607454221. The cubic root of 53694612 is about 377.2624401881.

The spelling of 53694612 in words is "fifty-three million, six hundred ninety-four thousand, six hundred twelve".