45722057 has 4 divisors (see below), whose sum is σ = 45801876. Its totient is φ = 45642240.

The previous prime is 45722051. The next prime is 45722077. The reversal of 45722057 is 75022754.

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 44769481 + 952576 = 6691^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 45722057 - 2¹² = 45717961 is a prime.

It is a super-2 number, since 2×45722057² = 4181012992622498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45722051) 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, 39044 + ... + 40197.

It is an arithmetic number, because the mean of its divisors is an integer number (11450469).

Almost surely, 2^45722057 is an apocalyptic number.

It is an amenable number.

45722057 is a deficient number, since it is larger than the sum of its proper divisors (79819).

45722057 is an equidigital number, since it uses as much as digits as its factorization.

45722057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79818.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 45722057 is about 6761.8087077349. The cubic root of 45722057 is about 357.5816743316.

The spelling of 45722057 in words is "forty-five million, seven hundred twenty-two thousand, fifty-seven".