3155531225 has 96 divisors (see below), whose sum is σ = 5027463936. Its totient is φ = 1907942400.

The previous prime is 3155531201. The next prime is 3155531231. The reversal of 3155531225 is 5221355513.

It is a de Polignac number, because none of the positive numbers 2^k-3155531225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3155531191 and 3155531200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16017827 + ... + 16018023.

It is an arithmetic number, because the mean of its divisors is an integer number (52369416).

Almost surely, 2^3155531225 is an apocalyptic number.

3155531225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3155531225 is a deficient number, since it is larger than the sum of its proper divisors (1871932711).

3155531225 is a wasteful number, since it uses less digits than its factorization.

3155531225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 430 counting only the distinct ones).

The product of its digits is 22500, while the sum is 32.

The square root of 3155531225 is about 56174.1152578303. The cubic root of 3155531225 is about 1466.7547185142.

Adding to 3155531225 its reverse (5221355513), we get a palindrome (8376886738).

The spelling of 3155531225 in words is "three billion, one hundred fifty-five million, five hundred thirty-one thousand, two hundred twenty-five".