53780994 has 48 divisors (see below), whose sum is σ = 119028312. Its totient is φ = 17547264.

The previous prime is 53780983. The next prime is 53780999. The reversal of 53780994 is 49908735.

It can be written as a sum of positive squares in 4 ways, for example, as 25553025 + 28227969 = 5055^2 + 5313^2 .

It is not an unprimeable number, because it can be changed into a prime (53780999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278562 + ... + 278754.

Almost surely, 2^53780994 is an apocalyptic number.

53780994 is an abundant number, since it is smaller than the sum of its proper divisors (65247318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53780994 is a wasteful number, since it uses less digits than its factorization.

53780994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 53780994 is about 7333.5526179335. The cubic root of 53780994 is about 377.4646406365.

The spelling of 53780994 in words is "fifty-three million, seven hundred eighty thousand, nine hundred ninety-four".