42563457 has 12 divisors (see below), whose sum is σ = 61850880. Its totient is φ = 28204728.

The previous prime is 42563429. The next prime is 42563459. The reversal of 42563457 is 75436524.

42563457 is a `hidden beast` number, since 42 + 563 + 4 + 57 = 666.

It is not a de Polignac number, because 42563457 - 2⁸ = 42563201 is a prime.

It is a super-3 number, since 3×42563457³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42563459) 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, 12657 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (5154240).

Almost surely, 2^42563457 is an apocalyptic number.

It is an amenable number.

42563457 is a deficient number, since it is larger than the sum of its proper divisors (19287423).

42563457 is a wasteful number, since it uses less digits than its factorization.

42563457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28492 (or 28489 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 42563457 is about 6524.0675195770. The cubic root of 42563457 is about 349.1502023123.

The spelling of 42563457 in words is "forty-two million, five hundred sixty-three thousand, four hundred fifty-seven".