91052426 has 4 divisors (see below), whose sum is σ = 136578642. Its totient is φ = 45526212.

The previous prime is 91052419. The next prime is 91052447. The reversal of 91052426 is 62425019.

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., 70576801 + 20475625 = 8401^2 + 4525^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22763105 + ... + 22763108.

Almost surely, 2^91052426 is an apocalyptic number.

91052426 is a deficient number, since it is larger than the sum of its proper divisors (45526216).

91052426 is a wasteful number, since it uses less digits than its factorization.

91052426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45526215.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 91052426 is about 9542.1394875573. The cubic root of 91052426 is about 449.8805048970.

The spelling of 91052426 in words is "ninety-one million, fifty-two thousand, four hundred twenty-six".