2152155503525 has 24 divisors (see below), whose sum is σ = 2695547813184. Its totient is φ = 1704422585600.

The previous prime is 2152155503521. The next prime is 2152155503539. The reversal of 2152155503525 is 5253055512512.

It is not a de Polignac number, because 2152155503525 - 2² = 2152155503521 is a prime.

It is a super-2 number, since 2×2152155503525² (a number of 25 digits) 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 (2152155503521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1875680 + ... + 2796870.

It is an arithmetic number, because the mean of its divisors is an integer number (112314492216).

Almost surely, 2^{2152155503525} is an apocalyptic number.

2152155503525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2152155503525 is a deficient number, since it is larger than the sum of its proper divisors (543392309659).

2152155503525 is a wasteful number, since it uses less digits than its factorization.

2152155503525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922141 (or 922136 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 2152155503525 in words is "two trillion, one hundred fifty-two billion, one hundred fifty-five million, five hundred three thousand, five hundred twenty-five".