53751487 has 8 divisors (see below), whose sum is σ = 55586736. Its totient is φ = 51946752.

The previous prime is 53751479. The next prime is 53751499. The reversal of 53751487 is 78415735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53751487 - 2³ = 53751479 is a prime.

It is a super-2 number, since 2×53751487² = 5778444709422338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53751407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4018 + ... + 11119.

It is an arithmetic number, because the mean of its divisors is an integer number (6948342).

Almost surely, 2^53751487 is an apocalyptic number.

53751487 is a deficient number, since it is larger than the sum of its proper divisors (1835249).

53751487 is a wasteful number, since it uses less digits than its factorization.

53751487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15257.

The product of its digits is 117600, while the sum is 40.

The square root of 53751487 is about 7331.5405611645. The cubic root of 53751487 is about 377.3955958812.

The spelling of 53751487 in words is "fifty-three million, seven hundred fifty-one thousand, four hundred eighty-seven".