245585457 has 12 divisors (see below), whose sum is σ = 382022004. Its totient is φ = 151129440.

The previous prime is 245585453. The next prime is 245585471. The reversal of 245585457 is 754585542.

245585457 is a `hidden beast` number, since 24 + 5 + 585 + 45 + 7 = 666.

245585457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 70711281 + 174874176 = 8409^2 + 13224^2 .

It is not a de Polignac number, because 245585457 - 2² = 245585453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245585453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1049394 + ... + 1049627.

It is an arithmetic number, because the mean of its divisors is an integer number (31835167).

Almost surely, 2^245585457 is an apocalyptic number.

It is an amenable number.

245585457 is a deficient number, since it is larger than the sum of its proper divisors (136436547).

245585457 is a wasteful number, since it uses less digits than its factorization.

245585457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099040 (or 2099037 counting only the distinct ones).

The product of its digits is 1120000, while the sum is 45.

The square root of 245585457 is about 15671.1664211698. The cubic root of 245585457 is about 626.2304991119.

It can be divided in two parts, 24558 and 5457, that multiplied together give a triangular number (134013006 = T₁₆₃₇₁).

The spelling of 245585457 in words is "two hundred forty-five million, five hundred eighty-five thousand, four hundred fifty-seven".