427520501 has 16 divisors (see below), whose sum is σ = 459701760. Its totient is φ = 396388080.

The previous prime is 427520477. The next prime is 427520503. The reversal of 427520501 is 105025724.

It is not a de Polignac number, because 427520501 - 2²⁶ = 360411637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427520503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211586 + ... + 213596.

It is an arithmetic number, because the mean of its divisors is an integer number (28731360).

Almost surely, 2^427520501 is an apocalyptic number.

It is an amenable number.

427520501 is a deficient number, since it is larger than the sum of its proper divisors (32181259).

427520501 is a wasteful number, since it uses less digits than its factorization.

427520501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 427520501 is about 20676.5688884786. The cubic root of 427520501 is about 753.3306690371.

The spelling of 427520501 in words is "four hundred twenty-seven million, five hundred twenty thousand, five hundred one".