51220354 has 16 divisors (see below), whose sum is σ = 81540000. Its totient is φ = 24047424.

The previous prime is 51220349. The next prime is 51220363. The reversal of 51220354 is 45302215.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15457 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (5096250).

Almost surely, 2^51220354 is an apocalyptic number.

51220354 is a deficient number, since it is larger than the sum of its proper divisors (30319646).

51220354 is a wasteful number, since it uses less digits than its factorization.

51220354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51220354 is about 7156.8396656625. The cubic root of 51220354 is about 371.3763058467.

Adding to 51220354 its reverse (45302215), we get a palindrome (96522569).

The spelling of 51220354 in words is "fifty-one million, two hundred twenty thousand, three hundred fifty-four".