345445525 has 24 divisors (see below), whose sum is σ = 457772040. Its totient is φ = 257679360.

The previous prime is 345445523. The next prime is 345445537. The reversal of 345445525 is 525544543.

It can be written as a sum of positive squares in 12 ways, for example, as 49364676 + 296080849 = 7026^2 + 17207^2 .

It is not a de Polignac number, because 345445525 - 2¹ = 345445523 is a prime.

It is a super-2 number, since 2×345445525² = 238665221485051250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345445523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42597 + ... + 50053.

It is an arithmetic number, because the mean of its divisors is an integer number (19073835).

Almost surely, 2^345445525 is an apocalyptic number.

It is an amenable number.

345445525 is a deficient number, since it is larger than the sum of its proper divisors (112326515).

345445525 is a wasteful number, since it uses less digits than its factorization.

345445525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593 (or 7588 counting only the distinct ones).

The product of its digits is 240000, while the sum is 37.

The square root of 345445525 is about 18586.1648814380. The cubic root of 345445525 is about 701.6596842649.

The spelling of 345445525 in words is "three hundred forty-five million, four hundred forty-five thousand, five hundred twenty-five".