51053554 has 4 divisors (see below), whose sum is σ = 76580334. Its totient is φ = 25526776.

The previous prime is 51053539. The next prime is 51053573. The reversal of 51053554 is 45535015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34869025 + 16184529 = 5905^2 + 4023^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12763387 + ... + 12763390.

Almost surely, 2^51053554 is an apocalyptic number.

51053554 is a deficient number, since it is larger than the sum of its proper divisors (25526780).

51053554 is a wasteful number, since it uses less digits than its factorization.

51053554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25526779.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 51053554 is about 7145.1769747152. The cubic root of 51053554 is about 370.9727362552.

Adding to 51053554 its reverse (45535015), we get a palindrome (96588569).

The spelling of 51053554 in words is "fifty-one million, fifty-three thousand, five hundred fifty-four".