2551005542 has 4 divisors (see below), whose sum is σ = 3826508316. Its totient is φ = 1275502770.

The previous prime is 2551005539. The next prime is 2551005553. The reversal of 2551005542 is 2455001552.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637751384 + ... + 637751387.

It is an arithmetic number, because the mean of its divisors is an integer number (956627079).

Almost surely, 2^2551005542 is an apocalyptic number.

2551005542 is a deficient number, since it is larger than the sum of its proper divisors (1275502774).

2551005542 is a wasteful number, since it uses less digits than its factorization.

2551005542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275502773.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2551005542 is about 50507.4800598882. The cubic root of 2551005542 is about 1366.3767620524.

The spelling of 2551005542 in words is "two billion, five hundred fifty-one million, five thousand, five hundred forty-two".