1551040501 has 2 divisors, whose sum is σ = 1551040502. Its totient is φ = 1551040500.

The previous prime is 1551040483. The next prime is 1551040531. The reversal of 1551040501 is 1050401551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1090980900 + 460059601 = 33030^2 + 21449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1551040501 - 2¹¹ = 1551038453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1551040531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775520250 + 775520251.

It is an arithmetic number, because the mean of its divisors is an integer number (775520251).

Almost surely, 2^1551040501 is an apocalyptic number.

It is an amenable number.

1551040501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551040501 is an equidigital number, since it uses as much as digits as its factorization.

1551040501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1551040501 is about 39383.2515290447. The cubic root of 1551040501 is about 1157.5534297930.

The spelling of 1551040501 in words is "one billion, five hundred fifty-one million, forty thousand, five hundred one".