259155051 has 4 divisors (see below), whose sum is σ = 345540072. Its totient is φ = 172770032.

The previous prime is 259155047. The next prime is 259155059. The reversal of 259155051 is 150551952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259155051 - 2² = 259155047 is a prime.

It is a super-2 number, since 2×259155051² = 134322680917625202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (259155059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43192506 + ... + 43192511.

It is an arithmetic number, because the mean of its divisors is an integer number (86385018).

Almost surely, 2^259155051 is an apocalyptic number.

259155051 is a deficient number, since it is larger than the sum of its proper divisors (86385021).

259155051 is an equidigital number, since it uses as much as digits as its factorization.

259155051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86385020.

The product of its (nonzero) digits is 11250, while the sum is 33.

The square root of 259155051 is about 16098.2934188690. The cubic root of 259155051 is about 637.5582833295.

The spelling of 259155051 in words is "two hundred fifty-nine million, one hundred fifty-five thousand, fifty-one".