53947550 has 12 divisors (see below), whose sum is σ = 100342536. Its totient is φ = 21579000.

The previous prime is 53947549. The next prime is 53947561. The reversal of 53947550 is 5574935.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 539426 + ... + 539525.

It is an arithmetic number, because the mean of its divisors is an integer number (8361878).

Almost surely, 2^53947550 is an apocalyptic number.

53947550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53947550 is a deficient number, since it is larger than the sum of its proper divisors (46394986).

53947550 is a wasteful number, since it uses less digits than its factorization.

53947550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078963 (or 1078958 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 53947550 is about 7344.8995908726. The cubic root of 53947550 is about 377.8538996611.

The spelling of 53947550 in words is "fifty-three million, nine hundred forty-seven thousand, five hundred fifty".