51488855 has 8 divisors (see below), whose sum is σ = 67403664. Its totient is φ = 37446400.

The previous prime is 51488851. The next prime is 51488893. The reversal of 51488855 is 55888415.

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

It is not a de Polignac number, because 51488855 - 2² = 51488851 is a prime.

It is a super-2 number, since 2×51488855² = 5302204378422050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51488851) 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, 468026 + ... + 468135.

It is an arithmetic number, because the mean of its divisors is an integer number (8425458).

Almost surely, 2^51488855 is an apocalyptic number.

51488855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51488855 is a deficient number, since it is larger than the sum of its proper divisors (15914809).

51488855 is a wasteful number, since it uses less digits than its factorization.

51488855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936177.

The product of its digits is 256000, while the sum is 44.

The square root of 51488855 is about 7175.5734962440. The cubic root of 51488855 is about 372.0241028627.

The spelling of 51488855 in words is "fifty-one million, four hundred eighty-eight thousand, eight hundred fifty-five".