53409632 has 24 divisors (see below), whose sum is σ = 106936200. Its totient is φ = 26251264.

The previous prime is 53409607. The next prime is 53409641. The reversal of 53409632 is 23690435.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12257 + ... + 16032.

It is an arithmetic number, because the mean of its divisors is an integer number (4455675).

Almost surely, 2^53409632 is an apocalyptic number.

It is an amenable number.

53409632 is an abundant number, since it is smaller than the sum of its proper divisors (53526568).

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

53409632 is a wasteful number, since it uses less digits than its factorization.

53409632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28358 (or 28350 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 53409632 is about 7308.1893790459. The cubic root of 53409632 is about 376.5938255088.

The spelling of 53409632 in words is "fifty-three million, four hundred nine thousand, six hundred thirty-two".