Search a number
-
+
52497961 is a prime number
BaseRepresentation
bin1100100001000…
…0111000101001
310122210011122221
43020100320221
5101414413321
65113114041
71205140165
oct310207051
9118704587
1052497961
11276a754a
12156b8921
13ab513a9
146d87ca5
15491ee41
hex3210e29

52497961 has 2 divisors, whose sum is σ = 52497962. Its totient is φ = 52497960.

The previous prime is 52497959. The next prime is 52497971. The reversal of 52497961 is 16979425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48734361 + 3763600 = 6981^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 52497961 - 21 = 52497959 is a prime.

Together with 52497959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52497901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26248980 + 26248981.

It is an arithmetic number, because the mean of its divisors is an integer number (26248981).

Almost surely, 252497961 is an apocalyptic number.

It is an amenable number.

52497961 is a deficient number, since it is larger than the sum of its proper divisors (1).

52497961 is an equidigital number, since it uses as much as digits as its factorization.

52497961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 52497961 is about 7245.5476673610. The cubic root of 52497961 is about 374.4387717392.

The spelling of 52497961 in words is "fifty-two million, four hundred ninety-seven thousand, nine hundred sixty-one".