91825037 has 4 divisors (see below), whose sum is σ = 91844796. Its totient is φ = 91805280.

The previous prime is 91825003. The next prime is 91825051. The reversal of 91825037 is 73052819.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84529636 + 7295401 = 9194^2 + 2701^2 .

It is a cyclic number.

It is not a de Polignac number, because 91825037 - 2¹⁰ = 91824013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91824988 and 91825006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91825057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (22961199).

Almost surely, 2^91825037 is an apocalyptic number.

It is an amenable number.

91825037 is a deficient number, since it is larger than the sum of its proper divisors (19759).

91825037 is a wasteful number, since it uses less digits than its factorization.

91825037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19758.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 91825037 is about 9582.5381293267. The cubic root of 91825037 is about 451.1493860287.

The spelling of 91825037 in words is "ninety-one million, eight hundred twenty-five thousand, thirty-seven".