53649772 has 12 divisors (see below), whose sum is σ = 102422376. Its totient is φ = 24386240.

The previous prime is 53649763. The next prime is 53649779. The reversal of 53649772 is 27794635.

It is not an unprimeable number, because it can be changed into a prime (53649779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609613 + ... + 609700.

It is an arithmetic number, because the mean of its divisors is an integer number (8535198).

Almost surely, 2^53649772 is an apocalyptic number.

It is an amenable number.

53649772 is a deficient number, since it is larger than the sum of its proper divisors (48772604).

53649772 is a wasteful number, since it uses less digits than its factorization.

53649772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219328 (or 1219326 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 53649772 is about 7324.6004669197. The cubic root of 53649772 is about 377.1573945214.

The spelling of 53649772 in words is "fifty-three million, six hundred forty-nine thousand, seven hundred seventy-two".