53514778 has 4 divisors (see below), whose sum is σ = 80272170. Its totient is φ = 26757388.

The previous prime is 53514763. The next prime is 53514779. The reversal of 53514778 is 87741535.

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

It can be written as a sum of positive squares in only one way, i.e., 41383489 + 12131289 = 6433^2 + 3483^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53514778.

It is not an unprimeable number, because it can be changed into a prime (53514779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13378693 + ... + 13378696.

Almost surely, 2^53514778 is an apocalyptic number.

53514778 is a deficient number, since it is larger than the sum of its proper divisors (26757392).

53514778 is a wasteful number, since it uses less digits than its factorization.

53514778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26757391.

The product of its digits is 117600, while the sum is 40.

The square root of 53514778 is about 7315.3795526958. The cubic root of 53514778 is about 376.8407933095.

The spelling of 53514778 in words is "fifty-three million, five hundred fourteen thousand, seven hundred seventy-eight".