402315002554 has 4 divisors (see below), whose sum is σ = 603472503834. Its totient is φ = 201157501276.

The previous prime is 402315002519. The next prime is 402315002627. The reversal of 402315002554 is 455200513204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 308388076929 + 93926925625 = 555327^2 + 306475^2 .

It is a super-2 number, since 2×402315002554² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100578750637 + ... + 100578750640.

Almost surely, 2^402315002554 is an apocalyptic number.

402315002554 is a deficient number, since it is larger than the sum of its proper divisors (201157501280).

402315002554 is a wasteful number, since it uses less digits than its factorization.

402315002554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201157501279.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 402315002554 its reverse (455200513204), we get a palindrome (857515515758).

The spelling of 402315002554 in words is "four hundred two billion, three hundred fifteen million, two thousand, five hundred fifty-four".