68911925 has 12 divisors (see below), whose sum is σ = 87064740. Its totient is φ = 54088320.

The previous prime is 68911907. The next prime is 68911943. The reversal of 68911925 is 52911986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68911907) and next prime (68911943).

It can be written as a sum of positive squares in 6 ways, for example, as 7806436 + 61105489 = 2794^2 + 7817^2 .

It is not a de Polignac number, because 68911925 - 2¹⁰ = 68910901 is a prime.

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, 24680 + ... + 27329.

It is an arithmetic number, because the mean of its divisors is an integer number (7255395).

Almost surely, 2^68911925 is an apocalyptic number.

It is an amenable number.

68911925 is a deficient number, since it is larger than the sum of its proper divisors (18152815).

68911925 is a wasteful number, since it uses less digits than its factorization.

68911925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52072 (or 52067 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 68911925 is about 8301.3206780608. The cubic root of 68911925 is about 409.9820039692.

The spelling of 68911925 in words is "sixty-eight million, nine hundred eleven thousand, nine hundred twenty-five".