51200655 has 32 divisors (see below), whose sum is σ = 90851328. Its totient is φ = 24412800.

The previous prime is 51200647. The next prime is 51200657. The reversal of 51200655 is 55600215.

It is not a de Polignac number, because 51200655 - 2³ = 51200647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51200657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7522 + ... + 12608.

It is an arithmetic number, because the mean of its divisors is an integer number (2839104).

Almost surely, 2^51200655 is an apocalyptic number.

51200655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51200655 is a deficient number, since it is larger than the sum of its proper divisors (39650673).

51200655 is a wasteful number, since it uses less digits than its factorization.

51200655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 51200655 is about 7155.4632973694. The cubic root of 51200655 is about 371.3286901410.

The spelling of 51200655 in words is "fifty-one million, two hundred thousand, six hundred fifty-five".