345540642025 has 12 divisors (see below), whose sum is σ = 447099544512. Its totient is φ = 264413708240.

The previous prime is 345540641977. The next prime is 345540642049. The reversal of 345540642025 is 520246045543.

It is a happy number.

It is not a de Polignac number, because 345540642025 - 2¹³ = 345540633833 is a prime.

It is a super-2 number, since 2×345540642025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300469549 + ... + 300470698.

It is an arithmetic number, because the mean of its divisors is an integer number (37258295376).

Almost surely, 2^345540642025 is an apocalyptic number.

It is an amenable number.

345540642025 is a deficient number, since it is larger than the sum of its proper divisors (101558902487).

345540642025 is a wasteful number, since it uses less digits than its factorization.

345540642025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600940280 (or 600940275 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 345540642025 its reverse (520246045543), we get a palindrome (865786687568).

The spelling of 345540642025 in words is "three hundred forty-five billion, five hundred forty million, six hundred forty-two thousand, twenty-five".