87550426 has 4 divisors (see below), whose sum is σ = 131325642. Its totient is φ = 43775212.

The previous prime is 87550409. The next prime is 87550427. The reversal of 87550426 is 62405578.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54774801 + 32775625 = 7401^2 + 5725^2 .

It is not an unprimeable number, because it can be changed into a prime (87550427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21887605 + ... + 21887608.

Almost surely, 2^87550426 is an apocalyptic number.

87550426 is a deficient number, since it is larger than the sum of its proper divisors (43775216).

87550426 is a wasteful number, since it uses less digits than its factorization.

87550426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43775215.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 87550426 is about 9356.8384617883. The cubic root of 87550426 is about 444.0372672504.

The spelling of 87550426 in words is "eighty-seven million, five hundred fifty thousand, four hundred twenty-six".