245265557 has 16 divisors (see below), whose sum is σ = 258311040. Its totient is φ = 232569792.

The previous prime is 245265551. The next prime is 245265571. The reversal of 245265557 is 755562542.

It is not a de Polignac number, because 245265557 - 2¹⁰ = 245264533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245265551) 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, 468698 + ... + 469220.

It is an arithmetic number, because the mean of its divisors is an integer number (16144440).

Almost surely, 2^245265557 is an apocalyptic number.

It is an amenable number.

245265557 is a deficient number, since it is larger than the sum of its proper divisors (13045483).

245265557 is a wasteful number, since it uses less digits than its factorization.

245265557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its digits is 420000, while the sum is 41.

The square root of 245265557 is about 15660.9564522733. The cubic root of 245265557 is about 625.9584713542.

The spelling of 245265557 in words is "two hundred forty-five million, two hundred sixty-five thousand, five hundred fifty-seven".