33253894474 has 4 divisors (see below), whose sum is σ = 49880841714. Its totient is φ = 16626947236.

The previous prime is 33253894447. The next prime is 33253894507. The reversal of 33253894474 is 47449835233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47449835233 = 857 ⋅55367369.

It can be written as a sum of positive squares in only one way, i.e., 32936805225 + 317089249 = 181485^2 + 17807^2 .

It is a super-2 number, since 2×33253894474² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8313473617 + ... + 8313473620.

Almost surely, 2^33253894474 is an apocalyptic number.

33253894474 is a deficient number, since it is larger than the sum of its proper divisors (16626947240).

33253894474 is a wasteful number, since it uses less digits than its factorization.

33253894474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16626947239.

The product of its digits is 8709120, while the sum is 52.

The spelling of 33253894474 in words is "thirty-three billion, two hundred fifty-three million, eight hundred ninety-four thousand, four hundred seventy-four".