53653356 has 18 divisors (see below), whose sum is σ = 135623852. Its totient is φ = 17884440.

The previous prime is 53653339. The next prime is 53653357. The reversal of 53653356 is 65335635.

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

It is a super-2 number, since 2×53653356² = 5757365220125472, 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: 1490371 = 53653356 / (5 + 3 + 6 + 5 + 3 + 3 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 53653356.

It is not an unprimeable number, because it can be changed into a prime (53653357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745150 + ... + 745221.

Almost surely, 2^53653356 is an apocalyptic number.

It is an amenable number.

53653356 is an abundant number, since it is smaller than the sum of its proper divisors (81970496).

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

53653356 is a wasteful number, since it uses less digits than its factorization.

53653356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490381 (or 1490376 counting only the distinct ones).

The product of its digits is 121500, while the sum is 36.

The square root of 53653356 is about 7324.8451178165. The cubic root of 53653356 is about 377.1657928299.

The spelling of 53653356 in words is "fifty-three million, six hundred fifty-three thousand, three hundred fifty-six".