1478752557 has 8 divisors (see below), whose sum is σ = 1979342976. Its totient is φ = 981998592.

The previous prime is 1478752529. The next prime is 1478752591. The reversal of 1478752557 is 7552578741.

1478752557 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1478752557 - 2¹⁸ = 1478490413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478752657) 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, 958213 + ... + 959754.

It is an arithmetic number, because the mean of its divisors is an integer number (247417872).

Almost surely, 2^1478752557 is an apocalyptic number.

It is an amenable number.

1478752557 is a deficient number, since it is larger than the sum of its proper divisors (500590419).

1478752557 is a wasteful number, since it uses less digits than its factorization.

1478752557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918227.

The product of its digits is 2744000, while the sum is 51.

The square root of 1478752557 is about 38454.5518372013. The cubic root of 1478752557 is about 1139.2835749466.

The spelling of 1478752557 in words is "one billion, four hundred seventy-eight million, seven hundred fifty-two thousand, five hundred fifty-seven".