245501457 has 8 divisors (see below), whose sum is σ = 331945920. Its totient is φ = 161362320.

The previous prime is 245501449. The next prime is 245501461. The reversal of 245501457 is 754105542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245501457 - 2³ = 245501449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245501447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576082 + ... + 576507.

It is an arithmetic number, because the mean of its divisors is an integer number (41493240).

Almost surely, 2^245501457 is an apocalyptic number.

It is an amenable number.

245501457 is a deficient number, since it is larger than the sum of its proper divisors (86444463).

245501457 is a wasteful number, since it uses less digits than its factorization.

245501457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152663.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 245501457 is about 15668.4861106617. The cubic root of 245501457 is about 626.1590923856.

Adding to 245501457 its reverse (754105542), we get a palindrome (999606999).

The spelling of 245501457 in words is "two hundred forty-five million, five hundred one thousand, four hundred fifty-seven".