1551600402 has 64 divisors (see below), whose sum is σ = 3504881664. Its totient is φ = 453781440.

The previous prime is 1551600389. The next prime is 1551600403. The reversal of 1551600402 is 2040061551.

1551600402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1551600403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307633 + ... + 312635.

It is an arithmetic number, because the mean of its divisors is an integer number (54763776).

Almost surely, 2^1551600402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1551600402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752440832).

1551600402 is an abundant number, since it is smaller than the sum of its proper divisors (1953281262).

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

1551600402 is a wasteful number, since it uses less digits than its factorization.

1551600402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1551600402 is about 39390.3592519794. The cubic root of 1551600402 is about 1157.6926991741.

Adding to 1551600402 its reverse (2040061551), we get a palindrome (3591661953).

The spelling of 1551600402 in words is "one billion, five hundred fifty-one million, six hundred thousand, four hundred two".