503402240605 has 64 divisors (see below), whose sum is σ = 687133310976. Its totient is φ = 350727552000.

The previous prime is 503402240569. The next prime is 503402240609. The reversal of 503402240605 is 506042204305.

It is not a de Polignac number, because 503402240605 - 2⁹ = 503402240093 is a prime.

It is a super-2 number, since 2×503402240605² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503402240609) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 274932040 + ... + 274933870.

It is an arithmetic number, because the mean of its divisors is an integer number (10736457984).

Almost surely, 2^503402240605 is an apocalyptic number.

503402240605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

503402240605 is a deficient number, since it is larger than the sum of its proper divisors (183731070371).

503402240605 is a wasteful number, since it uses less digits than its factorization.

503402240605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 503402240605 in words is "five hundred three billion, four hundred two million, two hundred forty thousand, six hundred five".