1521472755 has 32 divisors (see below), whose sum is σ = 2677644288. Its totient is φ = 737674080.

The previous prime is 1521472753. The next prime is 1521472763. The reversal of 1521472755 is 5572741251.

It is not a de Polignac number, because 1521472755 - 2¹ = 1521472753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1521472753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18139 + ... + 58068.

It is an arithmetic number, because the mean of its divisors is an integer number (83676384).

Almost surely, 2^1521472755 is an apocalyptic number.

1521472755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1521472755 is a deficient number, since it is larger than the sum of its proper divisors (1156171533).

1521472755 is an equidigital number, since it uses as much as digits as its factorization.

1521472755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76248 (or 76226 counting only the distinct ones).

The product of its digits is 98000, while the sum is 39.

The square root of 1521472755 is about 39006.0604906468. The cubic root of 1521472755 is about 1150.1506431517.

The spelling of 1521472755 in words is "one billion, five hundred twenty-one million, four hundred seventy-two thousand, seven hundred fifty-five".