2155239562 has 8 divisors (see below), whose sum is σ = 3694696416. Its totient is φ = 923674092.

The previous prime is 2155239557. The next prime is 2155239563. The reversal of 2155239562 is 2659325512.

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

It is not an unprimeable number, because it can be changed into a prime (2155239563) 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, 76972828 + ... + 76972855.

It is an arithmetic number, because the mean of its divisors is an integer number (461837052).

Almost surely, 2^2155239562 is an apocalyptic number.

2155239562 is a deficient number, since it is larger than the sum of its proper divisors (1539456854).

2155239562 is a wasteful number, since it uses less digits than its factorization.

2155239562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153945692.

The product of its digits is 162000, while the sum is 40.

The square root of 2155239562 is about 46424.5577469511. The cubic root of 2155239562 is about 1291.7104810130.

The spelling of 2155239562 in words is "two billion, one hundred fifty-five million, two hundred thirty-nine thousand, five hundred sixty-two".