345525507 has 20 divisors (see below), whose sum is σ = 543323880. Its totient is φ = 218225664.

The previous prime is 345525457. The next prime is 345525541. The reversal of 345525507 is 705525543.

It is not a de Polignac number, because 345525507 - 2⁷ = 345525379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345525107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 110718 + ... + 113795.

It is an arithmetic number, because the mean of its divisors is an integer number (27166194).

Almost surely, 2^345525507 is an apocalyptic number.

345525507 is a deficient number, since it is larger than the sum of its proper divisors (197798373).

345525507 is a wasteful number, since it uses less digits than its factorization.

345525507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224544 (or 224535 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The square root of 345525507 is about 18588.3164111223. The cubic root of 345525507 is about 701.7138325171.

Adding to 345525507 its sum of digits (36), we get a palindrome (345525543).

The spelling of 345525507 in words is "three hundred forty-five million, five hundred twenty-five thousand, five hundred seven".