5557537 has 2 divisors, whose sum is σ = 5557538. Its totient is φ = 5557536.

The previous prime is 5557523. The next prime is 5557547. The reversal of 5557537 is 7357555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5377761 + 179776 = 2319^2 + 424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5557537 is a prime.

5557537 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5557496 and 5557505.

It is not a weakly prime, because it can be changed into another prime (5557547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778768 + 2778769.

It is an arithmetic number, because the mean of its divisors is an integer number (2778769).

Almost surely, 2^5557537 is an apocalyptic number.

It is an amenable number.

5557537 is a deficient number, since it is larger than the sum of its proper divisors (1).

5557537 is an equidigital number, since it uses as much as digits as its factorization.

5557537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91875, while the sum is 37.

The square root of 5557537 is about 2357.4428943243. The cubic root of 5557537 is about 177.1308150168.

The spelling of 5557537 in words is "five million, five hundred fifty-seven thousand, five hundred thirty-seven".