51587355 has 16 divisors (see below), whose sum is σ = 82773504. Its totient is φ = 27435360.

The previous prime is 51587351. The next prime is 51587357. The reversal of 51587355 is 55378515.

It is not a de Polignac number, because 51587355 - 2² = 51587351 is a prime.

It is a super-2 number, since 2×51587355² = 5322510391792050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51587351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820 + ... + 10190.

It is an arithmetic number, because the mean of its divisors is an integer number (5173344).

Almost surely, 2^51587355 is an apocalyptic number.

51587355 is a deficient number, since it is larger than the sum of its proper divisors (31186149).

51587355 is a wasteful number, since it uses less digits than its factorization.

51587355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9746.

The product of its digits is 105000, while the sum is 39.

The square root of 51587355 is about 7182.4337797156. The cubic root of 51587355 is about 372.2611834996.

The spelling of 51587355 in words is "fifty-one million, five hundred eighty-seven thousand, three hundred fifty-five".