503256355240 has 32 divisors (see below), whose sum is σ = 1133109463680. Its totient is φ = 201163401792.

The previous prime is 503256355201. The next prime is 503256355243. The reversal of 503256355240 is 42553652305.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 503256355193 and 503256355202.

It is not an unprimeable number, because it can be changed into a prime (503256355243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4289532 + ... + 4405291.

It is an arithmetic number, because the mean of its divisors is an integer number (35409670740).

Almost surely, 2^503256355240 is an apocalyptic number.

It is an amenable number.

503256355240 is an abundant number, since it is smaller than the sum of its proper divisors (629853108440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503256355240 is a wasteful number, since it uses less digits than its factorization.

503256355240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8696281 (or 8696277 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 503256355240 in words is "five hundred three billion, two hundred fifty-six million, three hundred fifty-five thousand, two hundred forty".