68154025 has 12 divisors (see below), whose sum is σ = 86107212. Its totient is φ = 53493440.

The previous prime is 68154017. The next prime is 68154059. The reversal of 68154025 is 52045186.

It can be written as a sum of positive squares in 6 ways, for example, as 5253264 + 62900761 = 2292^2 + 7931^2 .

It is not a de Polignac number, because 68154025 - 2³ = 68154017 is a prime.

It is a super-2 number, since 2×68154025² = 9289942247401250, which contains 22 as substring.

It is a Duffinian 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, 24394 + ... + 27043.

It is an arithmetic number, because the mean of its divisors is an integer number (7175601).

Almost surely, 2^68154025 is an apocalyptic number.

It is an amenable number.

68154025 is a deficient number, since it is larger than the sum of its proper divisors (17953187).

68154025 is a wasteful number, since it uses less digits than its factorization.

68154025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51500 (or 51495 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 68154025 is about 8255.5451061695. The cubic root of 68154025 is about 408.4734527687.

The spelling of 68154025 in words is "sixty-eight million, one hundred fifty-four thousand, twenty-five".