245565542 has 16 divisors (see below), whose sum is σ = 374198832. Its totient is φ = 120847200.

The previous prime is 245565517. The next prime is 245565547.

It is a happy number.

245565542 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 245565496 and 245565505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245565547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31433 + ... + 38459.

It is an arithmetic number, because the mean of its divisors is an integer number (23387427).

Almost surely, 2^245565542 is an apocalyptic number.

245565542 is a deficient number, since it is larger than the sum of its proper divisors (128633290).

245565542 is a wasteful number, since it uses less digits than its factorization.

245565542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303.

The product of its digits is 240000, while the sum is 38.

The square root of 245565542 is about 15670.5310056807. The cubic root of 245565542 is about 626.2135712399.

The spelling of 245565542 in words is "two hundred forty-five million, five hundred sixty-five thousand, five hundred forty-two".