53145436 has 24 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 26191872.

The previous prime is 53145409. The next prime is 53145437. The reversal of 53145436 is 63454135.

It is a junction number, because it is equal to n+sod(n) for n = 53145398 and 53145407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53145437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118140 + ... + 118588.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 2^53145436 is an apocalyptic number.

It is an amenable number.

53145436 is a deficient number, since it is larger than the sum of its proper divisors (41203364).

53145436 is a wasteful number, since it uses less digits than its factorization.

53145436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 811 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 53145436 is about 7290.0916317972. The cubic root of 53145436 is about 375.9718460133.

The spelling of 53145436 in words is "fifty-three million, one hundred forty-five thousand, four hundred thirty-six".