33778053 has 20 divisors (see below), whose sum is σ = 52655328. Its totient is φ = 21538440.

The previous prime is 33778051. The next prime is 33778057. The reversal of 33778053 is 35087733.

It is not a de Polignac number, because 33778053 - 2¹ = 33778051 is a prime.

It is a super-2 number, since 2×33778053² = 2281913728941618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33777999 and 33778017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33778051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7203 + ... + 10928.

Almost surely, 2^33778053 is an apocalyptic number.

It is an amenable number.

33778053 is a deficient number, since it is larger than the sum of its proper divisors (18877275).

33778053 is a wasteful number, since it uses less digits than its factorization.

33778053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18166 (or 18157 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 33778053 is about 5811.8889356215. Note that the first 3 decimals coincide. The cubic root of 33778053 is about 323.2547170139.

The spelling of 33778053 in words is "thirty-three million, seven hundred seventy-eight thousand, fifty-three".