51484957 has 2 divisors, whose sum is σ = 51484958. Its totient is φ = 51484956.

The previous prime is 51484949. The next prime is 51484991. The reversal of 51484957 is 75948415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29713401 + 21771556 = 5451^2 + 4666^2 .

It is a cyclic number.

It is not a de Polignac number, because 51484957 - 2³ = 51484949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51484997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25742478 + 25742479.

It is an arithmetic number, because the mean of its divisors is an integer number (25742479).

Almost surely, 2^51484957 is an apocalyptic number.

It is an amenable number.

51484957 is a deficient number, since it is larger than the sum of its proper divisors (1).

51484957 is an equidigital number, since it uses as much as digits as its factorization.

51484957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The square root of 51484957 is about 7175.3018751827. The cubic root of 51484957 is about 372.0147145103.

It can be divided in two parts, 51484 and 957, that added together give a square (52441 = 229²).

The spelling of 51484957 in words is "fifty-one million, four hundred eighty-four thousand, nine hundred fifty-seven".