53487387 has 6 divisors (see below), whose sum is σ = 77259572. Its totient is φ = 35658252.

The previous prime is 53487383. The next prime is 53487409. The reversal of 53487387 is 78378435.

53487387 is a `hidden beast` number, since 534 + 87 + 38 + 7 = 666.

It is not a de Polignac number, because 53487387 - 2² = 53487383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53487383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2971513 + ... + 2971530.

Almost surely, 2^53487387 is an apocalyptic number.

53487387 is a deficient number, since it is larger than the sum of its proper divisors (23772185).

53487387 is a wasteful number, since it uses less digits than its factorization.

53487387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5943049 (or 5943046 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 53487387 is about 7313.5071614103. The cubic root of 53487387 is about 376.7764882824.

The spelling of 53487387 in words is "fifty-three million, four hundred eighty-seven thousand, three hundred eighty-seven".