53406450 has 36 divisors (see below), whose sum is σ = 143486538. Its totient is φ = 14241600.

The previous prime is 53406439. The next prime is 53406467. The reversal of 53406450 is 5460435.

It can be written as a sum of positive squares in 3 ways, for example, as 28933641 + 24472809 = 5379^2 + 4947^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58891 + ... + 59790.

Almost surely, 2^53406450 is an apocalyptic number.

53406450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53406450 is an abundant number, since it is smaller than the sum of its proper divisors (90080088).

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

53406450 is a wasteful number, since it uses less digits than its factorization.

53406450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118699 (or 118691 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 53406450 is about 7307.9716748220. The cubic root of 53406450 is about 376.5863465497.

Adding to 53406450 its reverse (5460435), we get a palindrome (58866885).

The spelling of 53406450 in words is "fifty-three million, four hundred six thousand, four hundred fifty".