54155501 has 4 divisors (see below), whose sum is σ = 56510112. Its totient is φ = 51800892.

The previous prime is 54155477. The next prime is 54155503. The reversal of 54155501 is 10555145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10555145 = 5 ⋅2111029.

It is a cyclic number.

It is not a de Polignac number, because 54155501 - 2¹⁴ = 54139117 is a prime.

It is a super-2 number, since 2×54155501² = 5865636577122002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54155503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177271 + ... + 1177316.

It is an arithmetic number, because the mean of its divisors is an integer number (14127528).

Almost surely, 2^54155501 is an apocalyptic number.

It is an amenable number.

54155501 is a deficient number, since it is larger than the sum of its proper divisors (2354611).

54155501 is a wasteful number, since it uses less digits than its factorization.

54155501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354610.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 54155501 is about 7359.0421251682. The cubic root of 54155501 is about 378.3387801985.

The spelling of 54155501 in words is "fifty-four million, one hundred fifty-five thousand, five hundred one".