978725503 has 8 divisors (see below), whose sum is σ = 1118834208. Its totient is φ = 838689504.

The previous prime is 978725491. The next prime is 978725519. The reversal of 978725503 is 305527879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 978725503 - 2⁵ = 978725471 is a prime.

It is a super-2 number, since 2×978725503² = 1915807220445206018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978725543) 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, 14625 + ... + 46597.

It is an arithmetic number, because the mean of its divisors is an integer number (139854276).

Almost surely, 2^978725503 is an apocalyptic number.

978725503 is a deficient number, since it is larger than the sum of its proper divisors (140108705).

978725503 is a wasteful number, since it uses less digits than its factorization.

978725503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36353.

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 978725503 is about 31284.5889057216. The cubic root of 978725503 is about 992.8576086999.

The spelling of 978725503 in words is "nine hundred seventy-eight million, seven hundred twenty-five thousand, five hundred three".