51928855 has 8 divisors (see below), whose sum is σ = 67979664. Its totient is φ = 37766400.

The previous prime is 51928841. The next prime is 51928861. The reversal of 51928855 is 55882915.

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

It is not a de Polignac number, because 51928855 - 2⁵ = 51928823 is a prime.

It is a super-2 number, since 2×51928855² = 5393211963222050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 472026 + ... + 472135.

It is an arithmetic number, because the mean of its divisors is an integer number (8497458).

Almost surely, 2^51928855 is an apocalyptic number.

51928855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51928855 is a deficient number, since it is larger than the sum of its proper divisors (16050809).

51928855 is a wasteful number, since it uses less digits than its factorization.

51928855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944177.

The product of its digits is 144000, while the sum is 43.

The square root of 51928855 is about 7206.1678442845. The cubic root of 51928855 is about 373.0808139482.

The spelling of 51928855 in words is "fifty-one million, nine hundred twenty-eight thousand, eight hundred fifty-five".