53999007 has 8 divisors (see below), whose sum is σ = 75788160. Its totient is φ = 34104600.

The previous prime is 53998999. The next prime is 53999017. The reversal of 53999007 is 70099935.

It is a happy number.

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

It is not a de Polignac number, because 53999007 - 2³ = 53998999 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 53999007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53999017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473619 + ... + 473732.

It is an arithmetic number, because the mean of its divisors is an integer number (9473520).

Almost surely, 2^53999007 is an apocalyptic number.

53999007 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

53999007 is a deficient number, since it is larger than the sum of its proper divisors (21789153).

53999007 is a wasteful number, since it uses less digits than its factorization.

53999007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947373.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 53999007 is about 7348.4016629468. The cubic root of 53999007 is about 377.9739980994.

The spelling of 53999007 in words is "fifty-three million, nine hundred ninety-nine thousand, seven".