30551132 has 24 divisors (see below), whose sum is σ = 54353376. Its totient is φ = 15024128.

The previous prime is 30551051. The next prime is 30551141. The reversal of 30551132 is 23115503.

It is a congruent number.

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, 116033 + ... + 116295.

It is an arithmetic number, because the mean of its divisors is an integer number (2264724).

Almost surely, 2^30551132 is an apocalyptic number.

It is an amenable number.

30551132 is a deficient number, since it is larger than the sum of its proper divisors (23802244).

30551132 is a wasteful number, since it uses less digits than its factorization.

30551132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 30551132 is about 5527.3078437880. The cubic root of 30551132 is about 312.6144886104.

Adding to 30551132 its reverse (23115503), we get a palindrome (53666635).

The spelling of 30551132 in words is "thirty million, five hundred fifty-one thousand, one hundred thirty-two".