53663870 has 32 divisors (see below), whose sum is σ = 104358240. Its totient is φ = 19751040.

The previous prime is 53663867. The next prime is 53663873. The reversal of 53663870 is 7836635.

It is an interprime number because it is at equal distance from previous prime (53663867) and next prime (53663873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53663873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65765 + ... + 66575.

It is an arithmetic number, because the mean of its divisors is an integer number (3261195).

Almost surely, 2^53663870 is an apocalyptic number.

53663870 is a deficient number, since it is larger than the sum of its proper divisors (50694370).

53663870 is a wasteful number, since it uses less digits than its factorization.

53663870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 53663870 is about 7325.5627770158. The cubic root of 53663870 is about 377.1904278974.

The spelling of 53663870 in words is "fifty-three million, six hundred sixty-three thousand, eight hundred seventy".