53640435 has 8 divisors (see below), whose sum is σ = 85824720. Its totient is φ = 28608224.

The previous prime is 53640427. The next prime is 53640437. The reversal of 53640435 is 53404635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53640435 - 2³ = 53640427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53640437) 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, 1788000 + ... + 1788029.

It is an arithmetic number, because the mean of its divisors is an integer number (10728090).

Almost surely, 2^53640435 is an apocalyptic number.

53640435 is a deficient number, since it is larger than the sum of its proper divisors (32184285).

53640435 is a wasteful number, since it uses less digits than its factorization.

53640435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576037.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 53640435 is about 7323.9630665371. The cubic root of 53640435 is about 377.1355135778.

The spelling of 53640435 in words is "fifty-three million, six hundred forty thousand, four hundred thirty-five".