4155501 has 16 divisors (see below), whose sum is σ = 6360704. Its totient is φ = 2363904.

The previous prime is 4155469. The next prime is 4155511. The reversal of 4155501 is 1055514.

It is not a de Polignac number, because 4155501 - 2⁵ = 4155469 is a prime.

It is a super-2 number, since 2×4155501² = 34536377122002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155511) 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, 8865 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (397544).

Almost surely, 2^4155501 is an apocalyptic number.

It is an amenable number.

4155501 is a deficient number, since it is larger than the sum of its proper divisors (2205203).

4155501 is a wasteful number, since it uses less digits than its factorization.

4155501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 4155501 is about 2038.5045989646. The cubic root of 4155501 is about 160.7710310800.

It can be divided in two parts, 4155 and 501, that added together give a triangular number (4656 = T₉₆).

The spelling of 4155501 in words is "four million, one hundred fifty-five thousand, five hundred one".