55150577 has 2 divisors, whose sum is σ = 55150578. Its totient is φ = 55150576.

The previous prime is 55150549. The next prime is 55150591. The reversal of 55150577 is 77505155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34210801 + 20939776 = 5849^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 55150577 - 2⁸ = 55150321 is a prime.

It is a super-2 number, since 2×55150577² = 6083172286865858, which contains 22 as substring.

It is equal to p_3290687 and since 55150577 and 3290687 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55150507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27575288 + 27575289.

It is an arithmetic number, because the mean of its divisors is an integer number (27575289).

Almost surely, 2^55150577 is an apocalyptic number.

It is an amenable number.

55150577 is a deficient number, since it is larger than the sum of its proper divisors (1).

55150577 is an equidigital number, since it uses as much as digits as its factorization.

55150577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 55150577 is about 7426.3434474848. The cubic root of 55150577 is about 380.6419826727.

The spelling of 55150577 in words is "fifty-five million, one hundred fifty thousand, five hundred seventy-seven".