87625519 has 2 divisors, whose sum is σ = 87625520. Its totient is φ = 87625518.

The previous prime is 87625453. The next prime is 87625523. The reversal of 87625519 is 91552678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87625519 - 2¹⁷ = 87494447 is a prime.

It is a super-2 number, since 2×87625519² = 15356463160038722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87625319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43812759 + 43812760.

It is an arithmetic number, because the mean of its divisors is an integer number (43812760).

Almost surely, 2^87625519 is an apocalyptic number.

87625519 is a deficient number, since it is larger than the sum of its proper divisors (1).

87625519 is an equidigital number, since it uses as much as digits as its factorization.

87625519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 43.

The square root of 87625519 is about 9360.8503353061. The cubic root of 87625519 is about 444.1641829163.

The spelling of 87625519 in words is "eighty-seven million, six hundred twenty-five thousand, five hundred nineteen".