1552400501 has 2 divisors, whose sum is σ = 1552400502. Its totient is φ = 1552400500.

The previous prime is 1552400497. The next prime is 1552400539. The reversal of 1552400501 is 1050042551.

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., 877699876 + 674700625 = 29626^2 + 25975^2 .

It is an emirp because it is prime and its reverse (1050042551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1552400501 - 2² = 1552400497 is a prime.

It is a super-4 number, since 4×1552400501⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552400561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776200250 + 776200251.

It is an arithmetic number, because the mean of its divisors is an integer number (776200251).

Almost surely, 2^1552400501 is an apocalyptic number.

It is an amenable number.

1552400501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552400501 is an equidigital number, since it uses as much as digits as its factorization.

1552400501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1552400501 is about 39400.5139687289. The cubic root of 1552400501 is about 1157.8916571021.

The spelling of 1552400501 in words is "one billion, five hundred fifty-two million, four hundred thousand, five hundred one".