1552414261 has 2 divisors, whose sum is σ = 1552414262. Its totient is φ = 1552414260.

The previous prime is 1552414243. The next prime is 1552414307. The reversal of 1552414261 is 1624142551.

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 + 461433361 = 33030^2 + 21481^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552414261 - 2⁹ = 1552413749 is a prime.

It is a super-2 number, since 2×1552414261² = 4819980075512352242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552414231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776207130 + 776207131.

It is an arithmetic number, because the mean of its divisors is an integer number (776207131).

Almost surely, 2^1552414261 is an apocalyptic number.

It is an amenable number.

1552414261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552414261 is an equidigital number, since it uses as much as digits as its factorization.

1552414261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 31.

The square root of 1552414261 is about 39400.6885853534. The cubic root of 1552414261 is about 1157.8950781570.

The spelling of 1552414261 in words is "one billion, five hundred fifty-two million, four hundred fourteen thousand, two hundred sixty-one".