45251536 has 40 divisors (see below), whose sum is σ = 97993728. Its totient is φ = 20064000.

The previous prime is 45251533. The next prime is 45251539. The reversal of 45251536 is 63515254.

It is an interprime number because it is at equal distance from previous prime (45251533) and next prime (45251539).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 45251498 and 45251507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45251533) 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, 4081 + ... + 10351.

Almost surely, 2^45251536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45251536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48996864).

45251536 is an abundant number, since it is smaller than the sum of its proper divisors (52742192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45251536 is a wasteful number, since it uses less digits than its factorization.

45251536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331 (or 6325 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 45251536 is about 6726.9261925489. The cubic root of 45251536 is about 356.3508303490.

The spelling of 45251536 in words is "forty-five million, two hundred fifty-one thousand, five hundred thirty-six".