55150357 has 2 divisors, whose sum is σ = 55150358. Its totient is φ = 55150356.

The previous prime is 55150351. The next prime is 55150367. The reversal of 55150357 is 75305155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47527236 + 7623121 = 6894^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 55150357 - 2³ = 55150349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55150351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27575178 + 27575179.

It is an arithmetic number, because the mean of its divisors is an integer number (27575179).

Almost surely, 2^55150357 is an apocalyptic number.

It is an amenable number.

55150357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55150357 is an equidigital number, since it uses as much as digits as its factorization.

55150357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 55150357 is about 7426.3286353352. The cubic root of 55150357 is about 380.6414765351.

The spelling of 55150357 in words is "fifty-five million, one hundred fifty thousand, three hundred fifty-seven".