53031457 has 2 divisors, whose sum is σ = 53031458. Its totient is φ = 53031456.

The previous prime is 53031431. The next prime is 53031479. The reversal of 53031457 is 75413035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53012961 + 18496 = 7281^2 + 136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53031457 is a prime.

It is not a weakly prime, because it can be changed into another prime (53031157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26515728 + 26515729.

It is an arithmetic number, because the mean of its divisors is an integer number (26515729).

Almost surely, 2^53031457 is an apocalyptic number.

It is an amenable number.

53031457 is a deficient number, since it is larger than the sum of its proper divisors (1).

53031457 is an equidigital number, since it uses as much as digits as its factorization.

53031457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 53031457 is about 7282.2700444298. The cubic root of 53031457 is about 375.7028761210.

The spelling of 53031457 in words is "fifty-three million, thirty-one thousand, four hundred fifty-seven".