45252251 has 8 divisors (see below), whose sum is σ = 49460544. Its totient is φ = 41059720.

The previous prime is 45252241. The next prime is 45252253. The reversal of 45252251 is 15225254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45252251 - 2⁶ = 45252187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45252251.

It is not an unprimeable number, because it can be changed into a prime (45252253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2540 + ... + 9846.

It is an arithmetic number, because the mean of its divisors is an integer number (6182568).

Almost surely, 2^45252251 is an apocalyptic number.

45252251 is a deficient number, since it is larger than the sum of its proper divisors (4208293).

45252251 is a wasteful number, since it uses less digits than its factorization.

45252251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881.

The product of its digits is 4000, while the sum is 26.

The square root of 45252251 is about 6726.9793369684. The cubic root of 45252251 is about 356.3527071876.

It can be divided in two parts, 4525 and 2251, that added together give a palindrome (6776).

The spelling of 45252251 in words is "forty-five million, two hundred fifty-two thousand, two hundred fifty-one".