245356557 has 32 divisors (see below), whose sum is σ = 353358720. Its totient is φ = 150958080.

The previous prime is 245356547. The next prime is 245356589. The reversal of 245356557 is 755653542.

It is not a de Polignac number, because 245356557 - 2⁷ = 245356429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245356547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 727893 + ... + 728229.

It is an arithmetic number, because the mean of its divisors is an integer number (11042460).

Almost surely, 2^245356557 is an apocalyptic number.

It is an amenable number.

245356557 is a deficient number, since it is larger than the sum of its proper divisors (108002163).

245356557 is a wasteful number, since it uses less digits than its factorization.

245356557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 630000, while the sum is 42.

The square root of 245356557 is about 15663.8614970894. The cubic root of 245356557 is about 626.0358774907.

The spelling of 245356557 in words is "two hundred forty-five million, three hundred fifty-six thousand, five hundred fifty-seven".