51255355 has 8 divisors (see below), whose sum is σ = 62937072. Its totient is φ = 40050528.

The previous prime is 51255301. The next prime is 51255359. The reversal of 51255355 is 55355215.

It is a happy number.

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 51255355 - 2⁷ = 51255227 is a prime.

It is a super-2 number, since 2×51255355² = 5254222832352050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51255359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118984 + ... + 119413.

It is an arithmetic number, because the mean of its divisors is an integer number (7867134).

Almost surely, 2^51255355 is an apocalyptic number.

51255355 is a deficient number, since it is larger than the sum of its proper divisors (11681717).

51255355 is a wasteful number, since it uses less digits than its factorization.

51255355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238445.

The product of its digits is 18750, while the sum is 31.

The square root of 51255355 is about 7159.2845312922. The cubic root of 51255355 is about 371.4608788818.

The spelling of 51255355 in words is "fifty-one million, two hundred fifty-five thousand, three hundred fifty-five".