3525221700 has 972 divisors, whose sum is σ = 15536849328. Its totient is φ = 660441600.

The previous prime is 3525221671. The next prime is 3525221717. The reversal of 3525221700 is 71225253.

It is an unprimeable number.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 81981879 + ... + 81981921.

Almost surely, 2^3525221700 is an apocalyptic number.

3525221700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3525221700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7768424664).

3525221700 is an abundant number, since it is smaller than the sum of its proper divisors (12011627628).

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

3525221700 is a wasteful number, since it uses less digits than its factorization.

3525221700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 3525221700 is about 59373.5774566431. The cubic root of 3525221700 is about 1521.9328049728.

Adding to 3525221700 its reverse (71225253), we get a palindrome (3596446953).

The spelling of 3525221700 in words is "three billion, five hundred twenty-five million, two hundred twenty-one thousand, seven hundred".