51205355 has 8 divisors (see below), whose sum is σ = 61495200. Its totient is φ = 40931776.

The previous prime is 51205321. The next prime is 51205379. The reversal of 51205355 is 55350215.

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

It is a cyclic number.

It is not a de Polignac number, because 51205355 - 2¹² = 51201259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4511 + ... + 11079.

It is an arithmetic number, because the mean of its divisors is an integer number (7686900).

Almost surely, 2^51205355 is an apocalyptic number.

51205355 is a deficient number, since it is larger than the sum of its proper divisors (10289845).

51205355 is a wasteful number, since it uses less digits than its factorization.

51205355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133.

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

The square root of 51205355 is about 7155.7917102163. The cubic root of 51205355 is about 371.3400519191.

The spelling of 51205355 in words is "fifty-one million, two hundred five thousand, three hundred fifty-five".