51587203 has 2 divisors, whose sum is σ = 51587204. Its totient is φ = 51587202.

The previous prime is 51587189. The next prime is 51587257. The reversal of 51587203 is 30278515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51587203 - 2²⁵ = 18032771 is a prime.

It is a super-2 number, since 2×51587203² = 5322479026726418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51587293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25793601 + 25793602.

It is an arithmetic number, because the mean of its divisors is an integer number (25793602).

Almost surely, 2^51587203 is an apocalyptic number.

51587203 is a deficient number, since it is larger than the sum of its proper divisors (1).

51587203 is an equidigital number, since it uses as much as digits as its factorization.

51587203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 51587203 is about 7182.4231983363. The cubic root of 51587203 is about 372.2608178818.

The spelling of 51587203 in words is "fifty-one million, five hundred eighty-seven thousand, two hundred three".