503778725 has 24 divisors (see below), whose sum is σ = 635887872. Its totient is φ = 395841600.

The previous prime is 503778701. The next prime is 503778739. The reversal of 503778725 is 527877305.

It is not a de Polignac number, because 503778725 - 2¹² = 503774629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 821519 + ... + 822131.

It is an arithmetic number, because the mean of its divisors is an integer number (26495328).

Almost surely, 2^503778725 is an apocalyptic number.

It is an amenable number.

503778725 is a deficient number, since it is larger than the sum of its proper divisors (132109147).

503778725 is a wasteful number, since it uses less digits than its factorization.

503778725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 44.

The square root of 503778725 is about 22445.0155936680. The cubic root of 503778725 is about 795.6949607899.

The spelling of 503778725 in words is "five hundred three million, seven hundred seventy-eight thousand, seven hundred twenty-five".