52437987 has 18 divisors (see below), whose sum is σ = 88110828. Its totient is φ = 29964312.

The previous prime is 52437971. The next prime is 52438007. The reversal of 52437987 is 78973425.

52437987 is a `hidden beast` number, since 524 + 37 + 98 + 7 = 666.

It is not a de Polignac number, because 52437987 - 2⁴ = 52437971 is a prime.

It is a super-2 number, since 2×52437987² = 5499484961224338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52437937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59013 + ... + 59894.

It is an arithmetic number, because the mean of its divisors is an integer number (4895046).

Almost surely, 2^52437987 is an apocalyptic number.

52437987 is a deficient number, since it is larger than the sum of its proper divisors (35672841).

52437987 is a wasteful number, since it uses less digits than its factorization.

52437987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118927 (or 118917 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 52437987 is about 7241.4078051164. The cubic root of 52437987 is about 374.2961303399.

The spelling of 52437987 in words is "fifty-two million, four hundred thirty-seven thousand, nine hundred eighty-seven".