503425644421 has 16 divisors (see below), whose sum is σ = 581412142080. Its totient is φ = 426961756800.

The previous prime is 503425644413. The next prime is 503425644433. The reversal of 503425644421 is 124446524305.

It is a cyclic number.

It is not a de Polignac number, because 503425644421 - 2³ = 503425644413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503425644401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880665 + ... + 1335073.

It is an arithmetic number, because the mean of its divisors is an integer number (36338258880).

Almost surely, 2^503425644421 is an apocalyptic number.

It is an amenable number.

503425644421 is a deficient number, since it is larger than the sum of its proper divisors (77986497659).

503425644421 is a wasteful number, since it uses less digits than its factorization.

503425644421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456084.

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 503425644421 in words is "five hundred three billion, four hundred twenty-five million, six hundred forty-four thousand, four hundred twenty-one".