345552251 has 16 divisors (see below), whose sum is σ = 405697248. Its totient is φ = 290803200.

The previous prime is 345552247. The next prime is 345552269. The reversal of 345552251 is 152255543.

It is a cyclic number.

It is not a de Polignac number, because 345552251 - 2² = 345552247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345552451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3740 + ... + 26553.

It is an arithmetic number, because the mean of its divisors is an integer number (25356078).

Almost surely, 2^345552251 is an apocalyptic number.

345552251 is a deficient number, since it is larger than the sum of its proper divisors (60144997).

345552251 is a wasteful number, since it uses less digits than its factorization.

345552251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30382.

The product of its digits is 30000, while the sum is 32.

The square root of 345552251 is about 18589.0357738103. The cubic root of 345552251 is about 701.7319364874.

The spelling of 345552251 in words is "three hundred forty-five million, five hundred fifty-two thousand, two hundred fifty-one".