53149653 has 12 divisors (see below), whose sum is σ = 78644748. Its totient is φ = 34568640.

The previous prime is 53149651. The next prime is 53149673. The reversal of 53149653 is 35694135.

It can be written as a sum of positive squares in 2 ways, for example, as 1912689 + 51236964 = 1383^2 + 7158^2 .

It is not a de Polignac number, because 53149653 - 2¹ = 53149651 is a prime.

It is a super-2 number, since 2×53149653² = 5649771228040818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53149651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71650 + ... + 72387.

It is an arithmetic number, because the mean of its divisors is an integer number (6553729).

Almost surely, 2^53149653 is an apocalyptic number.

It is an amenable number.

53149653 is a deficient number, since it is larger than the sum of its proper divisors (25495095).

53149653 is a wasteful number, since it uses less digits than its factorization.

53149653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144084 (or 144081 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 53149653 is about 7290.3808542490. The cubic root of 53149653 is about 375.9817899925.

The spelling of 53149653 in words is "fifty-three million, one hundred forty-nine thousand, six hundred fifty-three".