51953587 has 16 divisors (see below), whose sum is σ = 63092160. Its totient is φ = 41827968.

The previous prime is 51953579. The next prime is 51953593. The reversal of 51953587 is 78535915.

It is not a de Polignac number, because 51953587 - 2³ = 51953579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51953507) 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, 4053 + ... + 10969.

It is an arithmetic number, because the mean of its divisors is an integer number (3943260).

Almost surely, 2^51953587 is an apocalyptic number.

51953587 is a deficient number, since it is larger than the sum of its proper divisors (11138573).

51953587 is a wasteful number, since it uses less digits than its factorization.

51953587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6990.

The product of its digits is 189000, while the sum is 43.

The square root of 51953587 is about 7207.8836699825. The cubic root of 51953587 is about 373.1400332412.

The spelling of 51953587 in words is "fifty-one million, nine hundred fifty-three thousand, five hundred eighty-seven".