37225091 has 4 divisors (see below), whose sum is σ = 37509384. Its totient is φ = 36940800.

The previous prime is 37225033. The next prime is 37225099. The reversal of 37225091 is 19052273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19052273 = 491 ⋅38803.

It is a cyclic number.

It is not a de Polignac number, because 37225091 - 2²² = 33030787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37225099) 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, 141950 + ... + 142211.

It is an arithmetic number, because the mean of its divisors is an integer number (9377346).

Almost surely, 2^37225091 is an apocalyptic number.

37225091 is a deficient number, since it is larger than the sum of its proper divisors (284293).

37225091 is a wasteful number, since it uses less digits than its factorization.

37225091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284292.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 37225091 is about 6101.2368418215. The cubic root of 37225091 is about 333.8965430706.

The spelling of 37225091 in words is "thirty-seven million, two hundred twenty-five thousand, ninety-one".