45251900 has 18 divisors (see below), whose sum is σ = 98196840. Its totient is φ = 18100720.

The previous prime is 45251891. The next prime is 45251903. The reversal of 45251900 is 915254.

It is a super-2 number, since 2×45251900² = 4095468907220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45251900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45251903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226160 + ... + 226359.

It is an arithmetic number, because the mean of its divisors is an integer number (5455380).

Almost surely, 2^45251900 is an apocalyptic number.

It is an amenable number.

45251900 is an abundant number, since it is smaller than the sum of its proper divisors (52944940).

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

45251900 is a wasteful number, since it uses less digits than its factorization.

45251900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452533 (or 452526 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 45251900 is about 6726.9532479422. The cubic root of 45251900 is about 356.3517858329.

The spelling of 45251900 in words is "forty-five million, two hundred fifty-one thousand, nine hundred".