53978045 has 8 divisors (see below), whose sum is σ = 70662240. Its totient is φ = 39256720.

The previous prime is 53978039. The next prime is 53978059. The reversal of 53978045 is 54087935.

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

It is not a de Polignac number, because 53978045 - 2⁶ = 53977981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53977993 and 53978011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490655 + ... + 490764.

It is an arithmetic number, because the mean of its divisors is an integer number (8832780).

Almost surely, 2^53978045 is an apocalyptic number.

53978045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53978045 is a deficient number, since it is larger than the sum of its proper divisors (16684195).

53978045 is a wasteful number, since it uses less digits than its factorization.

53978045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981435.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 53978045 is about 7346.9752279424. The cubic root of 53978045 is about 377.9250829012.

The spelling of 53978045 in words is "fifty-three million, nine hundred seventy-eight thousand, forty-five".