51553205 has 8 divisors (see below), whose sum is σ = 67487904. Its totient is φ = 37493200.

The previous prime is 51553193. The next prime is 51553211. The reversal of 51553205 is 50235515.

51553205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51553205 - 2²² = 47358901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468611 + ... + 468720.

It is an arithmetic number, because the mean of its divisors is an integer number (8435988).

Almost surely, 2^51553205 is an apocalyptic number.

51553205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51553205 is a deficient number, since it is larger than the sum of its proper divisors (15934699).

51553205 is a wasteful number, since it uses less digits than its factorization.

51553205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937347.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 51553205 is about 7180.0560582770. The cubic root of 51553205 is about 372.1790217266.

The spelling of 51553205 in words is "fifty-one million, five hundred fifty-three thousand, two hundred five".