53645694 has 16 divisors (see below), whose sum is σ = 108893568. Its totient is φ = 17614872.

The previous prime is 53645653. The next prime is 53645707. The reversal of 53645694 is 49654635.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66322 + ... + 67125.

It is an arithmetic number, because the mean of its divisors is an integer number (6805848).

Almost surely, 2^53645694 is an apocalyptic number.

53645694 is an abundant number, since it is smaller than the sum of its proper divisors (55247874).

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

53645694 is a wasteful number, since it uses less digits than its factorization.

53645694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133519.

The product of its digits is 388800, while the sum is 42.

The square root of 53645694 is about 7324.3220846710. The cubic root of 53645694 is about 377.1478381787.

The spelling of 53645694 in words is "fifty-three million, six hundred forty-five thousand, six hundred ninety-four".