55929257 has 4 divisors (see below), whose sum is σ = 56984580. Its totient is φ = 54873936.

The previous prime is 55929241. The next prime is 55929259. The reversal of 55929257 is 75292955.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27081616 + 28847641 = 5204^2 + 5371^2 .

It is a cyclic number.

It is not a de Polignac number, because 55929257 - 2⁴ = 55929241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55929259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527582 + ... + 527687.

It is an arithmetic number, because the mean of its divisors is an integer number (14246145).

Almost surely, 2^55929257 is an apocalyptic number.

It is an amenable number.

55929257 is a deficient number, since it is larger than the sum of its proper divisors (1055323).

55929257 is a wasteful number, since it uses less digits than its factorization.

55929257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055322.

The product of its digits is 283500, while the sum is 44.

The square root of 55929257 is about 7478.5865643182. The cubic root of 55929257 is about 382.4250657030.

The spelling of 55929257 in words is "fifty-five million, nine hundred twenty-nine thousand, two hundred fifty-seven".