53251803 has 64 divisors (see below), whose sum is σ = 93312000. Its totient is φ = 29652480.

The previous prime is 53251789. The next prime is 53251817. The reversal of 53251803 is 30815235.

53251803 is a `hidden beast` number, since 532 + 51 + 80 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (53251789) and next prime (53251817).

It is not a de Polignac number, because 53251803 - 2⁴ = 53251787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53251823) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 267498 + ... + 267696.

It is an arithmetic number, because the mean of its divisors is an integer number (1458000).

Almost surely, 2^53251803 is an apocalyptic number.

53251803 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53251803 is a deficient number, since it is larger than the sum of its proper divisors (40060197).

53251803 is a wasteful number, since it uses less digits than its factorization.

53251803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 53251803 is about 7297.3832981419. The cubic root of 53251803 is about 376.2225062783. Note that the first 3 decimals are identical.

The spelling of 53251803 in words is "fifty-three million, two hundred fifty-one thousand, eight hundred three".