5155121533 has 16 divisors (see below), whose sum is σ = 5500240384. Its totient is φ = 4822908480.

The previous prime is 5155121501. The next prime is 5155121557. The reversal of 5155121533 is 3351215515.

It is a cyclic number.

It is not a de Polignac number, because 5155121533 - 2⁵ = 5155121501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5155121495 and 5155121504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155121233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165766 + ... + 194392.

It is an arithmetic number, because the mean of its divisors is an integer number (343765024).

Almost surely, 2^5155121533 is an apocalyptic number.

It is an amenable number.

5155121533 is a deficient number, since it is larger than the sum of its proper divisors (345118851).

5155121533 is a wasteful number, since it uses less digits than its factorization.

5155121533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28852.

The product of its digits is 11250, while the sum is 31.

The square root of 5155121533 is about 71799.1750161518. The cubic root of 5155121533 is about 1727.4797670417.

The spelling of 5155121533 in words is "five billion, one hundred fifty-five million, one hundred twenty-one thousand, five hundred thirty-three".