2155240501 has 8 divisors (see below), whose sum is σ = 2282425344. Its totient is φ = 2028100800.

The previous prime is 2155240489. The next prime is 2155240511. The reversal of 2155240501 is 1050425512.

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 2155240501 - 2²³ = 2146851893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155240511) 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, 175116 + ... + 187018.

It is an arithmetic number, because the mean of its divisors is an integer number (285303168).

Almost surely, 2^2155240501 is an apocalyptic number.

It is an amenable number.

2155240501 is a deficient number, since it is larger than the sum of its proper divisors (127184843).

2155240501 is a wasteful number, since it uses less digits than its factorization.

2155240501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22571.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2155240501 is about 46424.5678601320. The cubic root of 2155240501 is about 1291.7106686048.

The spelling of 2155240501 in words is "two billion, one hundred fifty-five million, two hundred forty thousand, five hundred one".