1530899955 has 24 divisors (see below), whose sum is σ = 2857681008. Its totient is φ = 753673536.

The previous prime is 1530899927. The next prime is 1530899959. The reversal of 1530899955 is 5599980351.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1530899955 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1530899959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1307877 + ... + 1309046.

It is an arithmetic number, because the mean of its divisors is an integer number (119070042).

Almost surely, 2^1530899955 is an apocalyptic number.

1530899955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1530899955 is a deficient number, since it is larger than the sum of its proper divisors (1326781053).

1530899955 is a wasteful number, since it uses less digits than its factorization.

1530899955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616947 (or 2616944 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 54.

The square root of 1530899955 is about 39126.7166396568. The cubic root of 1530899955 is about 1152.5212371962.

The spelling of 1530899955 in words is "one billion, five hundred thirty million, eight hundred ninety-nine thousand, nine hundred fifty-five".