3531431025 has 18 divisors (see below), whose sum is σ = 6325185750. Its totient is φ = 1883429760.

The previous prime is 3531431021. The next prime is 3531431039. The reversal of 3531431025 is 5201341353.

3531431025 is a `hidden beast` number, since 35 + 314 + 310 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 735982641 + 2795448384 = 27129^2 + 52872^2 .

It is not a de Polignac number, because 3531431025 - 2² = 3531431021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3531431025.

It is not an unprimeable number, because it can be changed into a prime (3531431021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7847400 + ... + 7847849.

Almost surely, 2^3531431025 is an apocalyptic number.

It is an amenable number.

3531431025 is a deficient number, since it is larger than the sum of its proper divisors (2793754725).

3531431025 is a wasteful number, since it uses less digits than its factorization.

3531431025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15695265 (or 15695257 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 3531431025 is about 59425.8447563011. The cubic root of 3531431025 is about 1522.8258582452.

Adding to 3531431025 its reverse (5201341353), we get a palindrome (8732772378).

The spelling of 3531431025 in words is "three billion, five hundred thirty-one million, four hundred thirty-one thousand, twenty-five".