52155499149 has 120 divisors (see below), whose sum is σ = 87847687200. Its totient is φ = 29725937280.

The previous prime is 52155499147. The next prime is 52155499199. The reversal of 52155499149 is 94199455125.

It is a happy number.

52155499149 is a `hidden beast` number, since 5 + 2 + 1 + 5 + 5 + 499 + 149 = 666.

It is not a de Polignac number, because 52155499149 - 2¹ = 52155499147 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52155499095 and 52155499104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52155499141) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 288151839 + ... + 288152019.

It is an arithmetic number, because the mean of its divisors is an integer number (732064060).

Almost surely, 2^52155499149 is an apocalyptic number.

52155499149 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

52155499149 is a deficient number, since it is larger than the sum of its proper divisors (35692188051).

52155499149 is a wasteful number, since it uses less digits than its factorization.

52155499149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 275 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 54.

The spelling of 52155499149 in words is "fifty-two billion, one hundred fifty-five million, four hundred ninety-nine thousand, one hundred forty-nine".