53957783 has 4 divisors (see below), whose sum is σ = 58863048. Its totient is φ = 49052520.

The previous prime is 53957767. The next prime is 53957789. The reversal of 53957783 is 38775935.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53957783 - 2⁴ = 53957767 is a prime.

It is a super-2 number, since 2×53957783² = 5822884692550178, 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 (53957789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452616 + ... + 2452637.

It is an arithmetic number, because the mean of its divisors is an integer number (14715762).

Almost surely, 2^53957783 is an apocalyptic number.

53957783 is a deficient number, since it is larger than the sum of its proper divisors (4905265).

53957783 is a wasteful number, since it uses less digits than its factorization.

53957783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905264.

The product of its digits is 793800, while the sum is 47.

The square root of 53957783 is about 7345.5961636888. The cubic root of 53957783 is about 377.8777891272.

The spelling of 53957783 in words is "fifty-three million, nine hundred fifty-seven thousand, seven hundred eighty-three".