50451000 has 128 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 13200000.

The previous prime is 50450999. The next prime is 50451007. The reversal of 50451000 is 15405.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50451007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200875 + ... + 201125.

It is an arithmetic number, because the mean of its divisors is an integer number (1253070).

Almost surely, 2^50451000 is an apocalyptic number.

50451000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50451000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196480).

50451000 is an abundant number, since it is smaller than the sum of its proper divisors (109941960).

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

50451000 is a wasteful number, since it uses less digits than its factorization.

50451000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 50451000 is about 7102.8867370950. The cubic root of 50451000 is about 369.5075015430.

50451000 divided by its product of nonzero digits (100) gives a triangular number (504510 = T₁₀₀₄).

Adding to 50451000 its reverse (15405), we get a palindrome (50466405).

The spelling of 50451000 in words is "fifty million, four hundred fifty-one thousand".