5551429632 has 192 divisors, whose sum is σ = 17501702400. Its totient is φ = 1531084800.

The previous prime is 5551429607. The next prime is 5551429649. The reversal of 5551429632 is 2369241555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245007 + ... + 1249457.

It is an arithmetic number, because the mean of its divisors is an integer number (91154700).

Almost surely, 2^5551429632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551429632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8750851200).

5551429632 is an abundant number, since it is smaller than the sum of its proper divisors (11950272768).

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

5551429632 is a wasteful number, since it uses less digits than its factorization.

5551429632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512 (or 4492 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The square root of 5551429632 is about 74507.9165726703. The cubic root of 5551429632 is about 1770.6590619180.

The spelling of 5551429632 in words is "five billion, five hundred fifty-one million, four hundred twenty-nine thousand, six hundred thirty-two".