3225155540 has 24 divisors (see below), whose sum is σ = 7006373640. Its totient is φ = 1245577088.

The previous prime is 3225155491. The next prime is 3225155543. The reversal of 3225155540 is 455515223.

It can be written as a sum of positive squares in 4 ways, for example, as 858138436 + 2367017104 = 29294^2 + 48652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3225155497 and 3225155506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3225155543) 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, 2779727 + ... + 2780886.

It is an arithmetic number, because the mean of its divisors is an integer number (291932235).

Almost surely, 2^3225155540 is an apocalyptic number.

It is an amenable number.

3225155540 is an abundant number, since it is smaller than the sum of its proper divisors (3781218100).

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

3225155540 is a wasteful number, since it uses less digits than its factorization.

3225155540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560651 (or 5560649 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 3225155540 is about 56790.4528948308. The cubic root of 3225155540 is about 1477.4639335067.

The spelling of 3225155540 in words is "three billion, two hundred twenty-five million, one hundred fifty-five thousand, five hundred forty".