51413454 has 56 divisors (see below), whose sum is σ = 116863560. Its totient is φ = 16955568.

The previous prime is 51413429. The next prime is 51413473. The reversal of 51413454 is 45431415.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 260884 + ... + 261080.

Almost surely, 2^51413454 is an apocalyptic number.

51413454 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51413454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58431780).

51413454 is an abundant number, since it is smaller than the sum of its proper divisors (65450106).

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

51413454 is a wasteful number, since it uses less digits than its factorization.

51413454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 381 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 51413454 is about 7170.3175661891. The cubic root of 51413454 is about 371.8424150438.

Adding to 51413454 its reverse (45431415), we get a palindrome (96844869).

The spelling of 51413454 in words is "fifty-one million, four hundred thirteen thousand, four hundred fifty-four".