1551051005 has 32 divisors (see below), whose sum is σ = 2164306176. Its totient is φ = 1045085184.

The previous prime is 1551050987. The next prime is 1551051017. The reversal of 1551051005 is 5001501551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1551051005 - 2²⁸ = 1282615549 is a prime.

It is a super-2 number, since 2×1551051005² = 4811518440223020050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1587077 + ... + 1588053.

It is an arithmetic number, because the mean of its divisors is an integer number (67634568).

Almost surely, 2^1551051005 is an apocalyptic number.

It is an amenable number.

1551051005 is a deficient number, since it is larger than the sum of its proper divisors (613255171).

1551051005 is an equidigital number, since it uses as much as digits as its factorization.

1551051005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 1551051005 is about 39383.3848849994. The cubic root of 1551051005 is about 1157.5560428590.

Adding to 1551051005 its reverse (5001501551), we get a palindrome (6552552556).

The spelling of 1551051005 in words is "one billion, five hundred fifty-one million, fifty-one thousand, five".