921325051 has 4 divisors (see below), whose sum is σ = 921763192. Its totient is φ = 920886912.

The previous prime is 921325037. The next prime is 921325079. The reversal of 921325051 is 150523129.

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

It is a cyclic number.

It is not a de Polignac number, because 921325051 - 2⁵ = 921325019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921325091) 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, 215901 + ... + 220126.

It is an arithmetic number, because the mean of its divisors is an integer number (230440798).

Almost surely, 2^921325051 is an apocalyptic number.

921325051 is a deficient number, since it is larger than the sum of its proper divisors (438141).

921325051 is a wasteful number, since it uses less digits than its factorization.

921325051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438140.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 921325051 is about 30353.3367358516. The cubic root of 921325051 is about 973.0555333145.

The spelling of 921325051 in words is "nine hundred twenty-one million, three hundred twenty-five thousand, fifty-one".