625249693 has 2 divisors, whose sum is σ = 625249694. Its totient is φ = 625249692.

The previous prime is 625249621. The next prime is 625249699. The reversal of 625249693 is 396942526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502970329 + 122279364 = 22427^2 + 11058^2 .

It is a cyclic number.

It is not a de Polignac number, because 625249693 - 2¹³ = 625241501 is a prime.

It is a super-3 number, since 3×625249693³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625249699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312624846 + 312624847.

It is an arithmetic number, because the mean of its divisors is an integer number (312624847).

Almost surely, 2^625249693 is an apocalyptic number.

It is an amenable number.

625249693 is a deficient number, since it is larger than the sum of its proper divisors (1).

625249693 is an equidigital number, since it uses as much as digits as its factorization.

625249693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 46.

The square root of 625249693 is about 25004.9933613269. The cubic root of 625249693 is about 855.1018165856.

It can be divided in two parts, 6252 and 49693, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 625249693 in words is "six hundred twenty-five million, two hundred forty-nine thousand, six hundred ninety-three".