550781425 has 12 divisors (see below), whose sum is σ = 683527680. Its totient is φ = 440264720.

The previous prime is 550781377. The next prime is 550781447. The reversal of 550781425 is 524187055.

It is not a de Polignac number, because 550781425 - 2⁹ = 550780913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24624 + ... + 41326.

It is an arithmetic number, because the mean of its divisors is an integer number (56960640).

Almost surely, 2^550781425 is an apocalyptic number.

It is an amenable number.

550781425 is a deficient number, since it is larger than the sum of its proper divisors (132746255).

550781425 is a wasteful number, since it uses less digits than its factorization.

550781425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18032 (or 18027 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 550781425 is about 23468.7329227634. The cubic root of 550781425 is about 819.7091100867.

The spelling of 550781425 in words is "five hundred fifty million, seven hundred eighty-one thousand, four hundred twenty-five".