33212513252 has 6 divisors (see below), whose sum is σ = 58121898198. Its totient is φ = 16606256624.

The previous prime is 33212513249. The next prime is 33212513263. The reversal of 33212513252 is 25231521233.

It can be written as a sum of positive squares in only one way, i.e., 26888128576 + 6324384676 = 163976^2 + 79526^2 .

It is a super-2 number, since 2×33212513252² (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, 4151564153 + ... + 4151564160.

It is an arithmetic number, because the mean of its divisors is an integer number (9686983033).

Almost surely, 2^33212513252 is an apocalyptic number.

It is an amenable number.

33212513252 is a deficient number, since it is larger than the sum of its proper divisors (24909384946).

33212513252 is a wasteful number, since it uses less digits than its factorization.

33212513252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8303128317 (or 8303128315 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The spelling of 33212513252 in words is "thirty-three billion, two hundred twelve million, five hundred thirteen thousand, two hundred fifty-two".