33257450020 has 24 divisors (see below), whose sum is σ = 70724707200. Its totient is φ = 13134587232.

The previous prime is 33257450003. The next prime is 33257450029. The reversal of 33257450020 is 2005475233.

It is a super-2 number, since 2×33257450020² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33257450029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10522930 + ... + 10526089.

It is an arithmetic number, because the mean of its divisors is an integer number (2946862800).

Almost surely, 2^33257450020 is an apocalyptic number.

It is an amenable number.

33257450020 is an abundant number, since it is smaller than the sum of its proper divisors (37467257180).

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

33257450020 is a wasteful number, since it uses less digits than its factorization.

33257450020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21049107 (or 21049105 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 31.

The spelling of 33257450020 in words is "thirty-three billion, two hundred fifty-seven million, four hundred fifty thousand, twenty".