4155254521 has 8 divisors (see below), whose sum is σ = 4537076544. Its totient is φ = 3774111120.

The previous prime is 4155254513. The next prime is 4155254527. The reversal of 4155254521 is 1254525514.

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

It is a cyclic number.

It is not a de Polignac number, because 4155254521 - 2³ = 4155254513 is a prime.

It is a super-2 number, since 2×4155254521² = 34532280268581878882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4155254527) 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, 156805 + ... + 181378.

It is an arithmetic number, because the mean of its divisors is an integer number (567134568).

Almost surely, 2^4155254521 is an apocalyptic number.

It is an amenable number.

4155254521 is a deficient number, since it is larger than the sum of its proper divisors (381822023).

4155254521 is a wasteful number, since it uses less digits than its factorization.

4155254521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339311.

The product of its digits is 40000, while the sum is 34.

The square root of 4155254521 is about 64461.2637248138. The cubic root of 4155254521 is about 1607.6785236451.

The spelling of 4155254521 in words is "four billion, one hundred fifty-five million, two hundred fifty-four thousand, five hundred twenty-one".