53445506 has 4 divisors (see below), whose sum is σ = 80168262. Its totient is φ = 26722752.

The previous prime is 53445487. The next prime is 53445527. The reversal of 53445506 is 60554435.

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., 53421481 + 24025 = 7309^2 + 155^2 .

It is a super-2 number, since 2×53445506² = 5712844223192072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13361375 + ... + 13361378.

Almost surely, 2^53445506 is an apocalyptic number.

53445506 is a deficient number, since it is larger than the sum of its proper divisors (26722756).

53445506 is a wasteful number, since it uses less digits than its factorization.

53445506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26722755.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 53445506 is about 7310.6433369437. The cubic root of 53445506 is about 376.6781230581.

The spelling of 53445506 in words is "fifty-three million, four hundred forty-five thousand, five hundred six".