1551150556 has 12 divisors (see below), whose sum is σ = 2787878968. Its totient is φ = 754613712.

The previous prime is 1551150553. The next prime is 1551150577. The reversal of 1551150556 is 6550511551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551150553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5240226 + ... + 5240521.

Almost surely, 2^1551150556 is an apocalyptic number.

It is an amenable number.

1551150556 is a deficient number, since it is larger than the sum of its proper divisors (1236728412).

1551150556 is a wasteful number, since it uses less digits than its factorization.

1551150556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10480788 (or 10480786 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The square root of 1551150556 is about 39384.6487352623. The cubic root of 1551150556 is about 1157.5808074425.

The spelling of 1551150556 in words is "one billion, five hundred fifty-one million, one hundred fifty thousand, five hundred fifty-six".