2156005526 has 16 divisors (see below), whose sum is σ = 3304324800. Its totient is φ = 1054584960.

The previous prime is 2156005507. The next prime is 2156005547. The reversal of 2156005526 is 6255006512.

It is a junction number, because it is equal to n+sod(n) for n = 2156005492 and 2156005501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289700 + ... + 297048.

It is an arithmetic number, because the mean of its divisors is an integer number (206520300).

Almost surely, 2^2156005526 is an apocalyptic number.

2156005526 is a deficient number, since it is larger than the sum of its proper divisors (1148319274).

2156005526 is a wasteful number, since it uses less digits than its factorization.

2156005526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10519.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 2156005526 is about 46432.8065703550. The cubic root of 2156005526 is about 1291.8634858974.

The spelling of 2156005526 in words is "two billion, one hundred fifty-six million, five thousand, five hundred twenty-six".