625453523 has 2 divisors, whose sum is σ = 625453524. Its totient is φ = 625453522.

The previous prime is 625453471. The next prime is 625453603. The reversal of 625453523 is 325354526.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 625453523 - 2⁶ = 625453459 is a prime.

It is a super-4 number, since 4×625453523⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (625456523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312726761 + 312726762.

It is an arithmetic number, because the mean of its divisors is an integer number (312726762).

Almost surely, 2^625453523 is an apocalyptic number.

625453523 is a deficient number, since it is larger than the sum of its proper divisors (1).

625453523 is an equidigital number, since it uses as much as digits as its factorization.

625453523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 35.

The square root of 625453523 is about 25009.0688151318. The cubic root of 625453523 is about 855.1947269161.

The spelling of 625453523 in words is "six hundred twenty-five million, four hundred fifty-three thousand, five hundred twenty-three".