55170425 has 6 divisors (see below), whose sum is σ = 68411358. Its totient is φ = 44136320.

The previous prime is 55170397. The next prime is 55170431. The reversal of 55170425 is 52407155.

It can be written as a sum of positive squares in 3 ways, for example, as 15832441 + 39337984 = 3979^2 + 6272^2 .

It is not a de Polignac number, because 55170425 - 2¹⁴ = 55154041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1103384 + ... + 1103433.

It is an arithmetic number, because the mean of its divisors is an integer number (11401893).

Almost surely, 2^55170425 is an apocalyptic number.

It is an amenable number.

55170425 is a deficient number, since it is larger than the sum of its proper divisors (13240933).

55170425 is a wasteful number, since it uses less digits than its factorization.

55170425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206827 (or 2206822 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 55170425 is about 7427.6796511427. The cubic root of 55170425 is about 380.6876399523.

The spelling of 55170425 in words is "fifty-five million, one hundred seventy thousand, four hundred twenty-five".