1551125432 has 8 divisors (see below), whose sum is σ = 2908360200. Its totient is φ = 775562712.

The previous prime is 1551125431. The next prime is 1551125447. The reversal of 1551125432 is 2345211551.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1551125395 and 1551125404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551125431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96945332 + ... + 96945347.

It is an arithmetic number, because the mean of its divisors is an integer number (363545025).

Almost surely, 2^1551125432 is an apocalyptic number.

It is an amenable number.

1551125432 is a deficient number, since it is larger than the sum of its proper divisors (1357234768).

1551125432 is a wasteful number, since it uses less digits than its factorization.

1551125432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193890685 (or 193890681 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 1551125432 is about 39384.3297772096. The cubic root of 1551125432 is about 1157.5745576264.

Adding to 1551125432 its reverse (2345211551), we get a palindrome (3896336983).

The spelling of 1551125432 in words is "one billion, five hundred fifty-one million, one hundred twenty-five thousand, four hundred thirty-two".