51202355 has 4 divisors (see below), whose sum is σ = 61442832. Its totient is φ = 40961880.

The previous prime is 51202343. The next prime is 51202357. The reversal of 51202355 is 55320215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55320215 = 5 ⋅11064043.

It is a de Polignac number, because none of the positive numbers 2^k-51202355 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51202355.

It is not an unprimeable number, because it can be changed into a prime (51202357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5120231 + ... + 5120240.

It is an arithmetic number, because the mean of its divisors is an integer number (15360708).

Almost surely, 2^51202355 is an apocalyptic number.

51202355 is a deficient number, since it is larger than the sum of its proper divisors (10240477).

51202355 is a wasteful number, since it uses less digits than its factorization.

51202355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240476.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 51202355 is about 7155.5820867348. The cubic root of 51202355 is about 371.3327998005.

The spelling of 51202355 in words is "fifty-one million, two hundred two thousand, three hundred fifty-five".