1553432416 has 24 divisors (see below), whose sum is σ = 3066048720. Its totient is φ = 774753408.

The previous prime is 1553432393. The next prime is 1553432449. The reversal of 1553432416 is 6142343551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48436 + ... + 73843.

It is an arithmetic number, because the mean of its divisors is an integer number (127752030).

Almost surely, 2^1553432416 is an apocalyptic number.

1553432416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1553432416 is a deficient number, since it is larger than the sum of its proper divisors (1512616304).

1553432416 is a wasteful number, since it uses less digits than its factorization.

1553432416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122686 (or 122678 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 1553432416 is about 39413.6069904798. The cubic root of 1553432416 is about 1158.1481590206.

Adding to 1553432416 its reverse (6142343551), we get a palindrome (7695775967).

The spelling of 1553432416 in words is "one billion, five hundred fifty-three million, four hundred thirty-two thousand, four hundred sixteen".