53354440 has 32 divisors (see below), whose sum is σ = 120267000. Its totient is φ = 21302784.

The previous prime is 53354429. The next prime is 53354531. The reversal of 53354440 is 4445335.

It can be written as a sum of positive squares in 4 ways, for example, as 52736644 + 617796 = 7262^2 + 786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53354399 and 53354408.

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, 32356 + ... + 33964.

Almost surely, 2^53354440 is an apocalyptic number.

It is an amenable number.

53354440 is an abundant number, since it is smaller than the sum of its proper divisors (66912560).

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

53354440 is a wasteful number, since it uses less digits than its factorization.

53354440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 53354440 is about 7304.4123651393. The cubic root of 53354440 is about 376.4640603379.

Adding to 53354440 its reverse (4445335), we get a palindrome (57799775).

The spelling of 53354440 in words is "fifty-three million, three hundred fifty-four thousand, four hundred forty".