2100525 has 24 divisors (see below), whose sum is σ = 3969984. Its totient is φ = 960000.

The previous prime is 2100523. The next prime is 2100533. The reversal of 2100525 is 5250012.

It is not a de Polignac number, because 2100525 - 2¹ = 2100523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100523) 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, 1476 + ... + 2525.

It is an arithmetic number, because the mean of its divisors is an integer number (165416).

2^2100525 is an apocalyptic number.

2100525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100525 is a deficient number, since it is larger than the sum of its proper divisors (1869459).

2100525 is a wasteful number, since it uses less digits than its factorization.

2100525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021 (or 4016 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2100525 is about 1449.3188055083. The cubic root of 2100525 is about 128.0685871026.

Adding to 2100525 its reverse (5250012), we get a palindrome (7350537).

It can be divided in two parts, 2100 and 525, that multiplied together give a square (1102500 = 1050²).

The spelling of 2100525 in words is "two million, one hundred thousand, five hundred twenty-five".