625515043 has 2 divisors, whose sum is σ = 625515044. Its totient is φ = 625515042.

The previous prime is 625515019. The next prime is 625515049. The reversal of 625515043 is 340515526.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625515043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625514996 and 625515014.

It is not a weakly prime, because it can be changed into another prime (625515049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312757521 + 312757522.

It is an arithmetic number, because the mean of its divisors is an integer number (312757522).

Almost surely, 2^625515043 is an apocalyptic number.

625515043 is a deficient number, since it is larger than the sum of its proper divisors (1).

625515043 is an equidigital number, since it uses as much as digits as its factorization.

625515043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 625515043 is about 25010.2987387196. The cubic root of 625515043 is about 855.2227651597. Note that the first 3 decimals are identical.

The spelling of 625515043 in words is "six hundred twenty-five million, five hundred fifteen thousand, forty-three".