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52155479 is a prime number
BaseRepresentation
bin1100011011110…
…1010001010111
310122010202212102
43012331101113
5101322433404
65101512315
71202212535
oct306752127
9118122772
1052155479
1127493202
121557269b
13aa6153c
146cd9155
1548a371e
hex31bd457

52155479 has 2 divisors, whose sum is σ = 52155480. Its totient is φ = 52155478.

The previous prime is 52155451. The next prime is 52155487. The reversal of 52155479 is 97455125.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52155479 - 28 = 52155223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52155449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26077739 + 26077740.

It is an arithmetic number, because the mean of its divisors is an integer number (26077740).

Almost surely, 252155479 is an apocalyptic number.

52155479 is a deficient number, since it is larger than the sum of its proper divisors (1).

52155479 is an equidigital number, since it uses as much as digits as its factorization.

52155479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 38.

The square root of 52155479 is about 7221.8750335353. The cubic root of 52155479 is about 373.6227500869.

The spelling of 52155479 in words is "fifty-two million, one hundred fifty-five thousand, four hundred seventy-nine".