53851887 has 12 divisors (see below), whose sum is σ = 78557544. Its totient is φ = 35545200.

The previous prime is 53851879. The next prime is 53851907. The reversal of 53851887 is 78815835.

It is a happy number.

53851887 is a `hidden beast` number, since 53 + 8 + 518 + 87 = 666.

It is not a de Polignac number, because 53851887 - 2³ = 53851879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53851807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28713 + ... + 30530.

It is an arithmetic number, because the mean of its divisors is an integer number (6546462).

Almost surely, 2^53851887 is an apocalyptic number.

53851887 is a deficient number, since it is larger than the sum of its proper divisors (24705657).

53851887 is a wasteful number, since it uses less digits than its factorization.

53851887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59350 (or 59347 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 53851887 is about 7338.3844952414. The cubic root of 53851887 is about 377.6304231890.

It can be divided in two parts, 538 and 51887, that added together give a palindrome (52425).

The spelling of 53851887 in words is "fifty-three million, eight hundred fifty-one thousand, eight hundred eighty-seven".