3534221726525 has 24 divisors (see below), whose sum is σ = 5009558695104. Its totient is φ = 2422952640000.

The previous prime is 3534221726521. The next prime is 3534221726537. The reversal of 3534221726525 is 5256271224353.

It is not a de Polignac number, because 3534221726525 - 2² = 3534221726521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3534221726525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3534221726521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1311476 + ... + 2964525.

It is an arithmetic number, because the mean of its divisors is an integer number (208731612296).

Almost surely, 2^{3534221726525} is an apocalyptic number.

3534221726525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3534221726525 is a deficient number, since it is larger than the sum of its proper divisors (1475336968579).

3534221726525 is a wasteful number, since it uses less digits than its factorization.

3534221726525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280741 (or 4280736 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 47.

The spelling of 3534221726525 in words is "three trillion, five hundred thirty-four billion, two hundred twenty-one million, seven hundred twenty-six thousand, five hundred twenty-five".