53977487 has 8 divisors (see below), whose sum is σ = 55540800. Its totient is φ = 52419744.

The previous prime is 53977477. The next prime is 53977489. The reversal of 53977487 is 78477935.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53977487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53977489) 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, 25589 + ... + 27617.

It is an arithmetic number, because the mean of its divisors is an integer number (6942600).

Almost surely, 2^53977487 is an apocalyptic number.

53977487 is a deficient number, since it is larger than the sum of its proper divisors (1563313).

53977487 is a wasteful number, since it uses less digits than its factorization.

53977487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785.

The product of its digits is 1481760, while the sum is 50.

The square root of 53977487 is about 7346.9372530327. The cubic root of 53977487 is about 377.9237806253.

The spelling of 53977487 in words is "fifty-three million, nine hundred seventy-seven thousand, four hundred eighty-seven".