487400522251 has 8 divisors (see below), whose sum is σ = 490161745584. Its totient is φ = 484641730560.

The previous prime is 487400522243. The next prime is 487400522291. The reversal of 487400522251 is 152225004784.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 487400522251 - 2³ = 487400522243 is a prime.

It is a super-2 number, since 2×487400522251² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487400522291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205141 + ... + 1008406.

It is an arithmetic number, because the mean of its divisors is an integer number (61270218198).

Almost surely, 2^487400522251 is an apocalyptic number.

487400522251 is a deficient number, since it is larger than the sum of its proper divisors (2761223333).

487400522251 is a wasteful number, since it uses less digits than its factorization.

487400522251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215821.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 487400522251 in words is "four hundred eighty-seven billion, four hundred million, five hundred twenty-two thousand, two hundred fifty-one".