105249925 has 12 divisors (see below), whose sum is σ = 142374816. Its totient is φ = 76545200.

The previous prime is 105249919. The next prime is 105249931. The reversal of 105249925 is 529942501.

It is an interprime number because it is at equal distance from previous prime (105249919) and next prime (105249931).

It is not a de Polignac number, because 105249925 - 2¹⁹ = 104725637 is a prime.

It is a super-2 number, since 2×105249925² = 22155093425011250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191089 + ... + 191638.

It is an arithmetic number, because the mean of its divisors is an integer number (11864568).

Almost surely, 2^105249925 is an apocalyptic number.

It is an amenable number.

105249925 is a deficient number, since it is larger than the sum of its proper divisors (37124891).

105249925 is a wasteful number, since it uses less digits than its factorization.

105249925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382748 (or 382743 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 105249925 is about 10259.1386090646. The cubic root of 105249925 is about 472.1434092743.

It can be divided in two parts, 10524 and 9925, that added together give a square (20449 = 143²).

The spelling of 105249925 in words is "one hundred five million, two hundred forty-nine thousand, nine hundred twenty-five".