257601542 has 16 divisors (see below), whose sum is σ = 425878992. Its totient is φ = 115883520.

The previous prime is 257601529. The next prime is 257601569. The reversal of 257601542 is 245106752.

It is a junction number, because it is equal to n+sod(n) for n = 257601499 and 257601508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58223 + ... + 62490.

It is an arithmetic number, because the mean of its divisors is an integer number (26617437).

Almost surely, 2^257601542 is an apocalyptic number.

257601542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

257601542 is a deficient number, since it is larger than the sum of its proper divisors (168277450).

257601542 is a wasteful number, since it uses less digits than its factorization.

257601542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120823.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 257601542 is about 16049.9701557355. The cubic root of 257601542 is about 636.2817782165.

The spelling of 257601542 in words is "two hundred fifty-seven million, six hundred one thousand, five hundred forty-two".