45621253 has 2 divisors, whose sum is σ = 45621254. Its totient is φ = 45621252.

The previous prime is 45621241. The next prime is 45621281. The reversal of 45621253 is 35212654.

It is an a-pointer prime, because the next prime (45621281) can be obtained adding 45621253 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26811684 + 18809569 = 5178^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 45621253 - 2²¹ = 43524101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45621203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22810626 + 22810627.

It is an arithmetic number, because the mean of its divisors is an integer number (22810627).

Almost surely, 2^45621253 is an apocalyptic number.

It is an amenable number.

45621253 is a deficient number, since it is larger than the sum of its proper divisors (1).

45621253 is an equidigital number, since it uses as much as digits as its factorization.

45621253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 45621253 is about 6754.3506719743. The cubic root of 45621253 is about 357.3186926836.

The spelling of 45621253 in words is "forty-five million, six hundred twenty-one thousand, two hundred fifty-three".