53780975 has 12 divisors (see below), whose sum is σ = 66974880. Its totient is φ = 42840000.

The previous prime is 53780959. The next prime is 53780983. The reversal of 53780975 is 57908735.

It is a happy number.

It is not a de Polignac number, because 53780975 - 2⁴ = 53780959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1475 + ... + 10475.

It is an arithmetic number, because the mean of its divisors is an integer number (5581240).

Almost surely, 2^53780975 is an apocalyptic number.

53780975 is a deficient number, since it is larger than the sum of its proper divisors (13193905).

53780975 is a wasteful number, since it uses less digits than its factorization.

53780975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250 (or 9245 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 53780975 is about 7333.5513225176. The cubic root of 53780975 is about 377.4645961856.

The spelling of 53780975 in words is "fifty-three million, seven hundred eighty thousand, nine hundred seventy-five".