55445597 has 8 divisors (see below), whose sum is σ = 56653440. Its totient is φ = 54250560.

The previous prime is 55445587. The next prime is 55445603. The reversal of 55445597 is 79554455.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55445597 - 2¹⁰ = 55444573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55445527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5822 + ... + 12032.

It is an arithmetic number, because the mean of its divisors is an integer number (7081680).

Almost surely, 2^55445597 is an apocalyptic number.

It is an amenable number.

55445597 is a deficient number, since it is larger than the sum of its proper divisors (1207843).

55445597 is a wasteful number, since it uses less digits than its factorization.

55445597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6403.

The product of its digits is 630000, while the sum is 44.

The square root of 55445597 is about 7446.1800273697. The cubic root of 55445597 is about 381.3195056650.

The spelling of 55445597 in words is "fifty-five million, four hundred forty-five thousand, five hundred ninety-seven".