51542002 has 8 divisors (see below), whose sum is σ = 79198812. Its totient is φ = 25142400.

The previous prime is 51541991. The next prime is 51542027. The reversal of 51542002 is 20024515.

It can be written as a sum of positive squares in 2 ways, for example, as 37933281 + 13608721 = 6159^2 + 3689^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314199 + ... + 314362.

Almost surely, 2^51542002 is an apocalyptic number.

51542002 is a deficient number, since it is larger than the sum of its proper divisors (27656810).

51542002 is a wasteful number, since it uses less digits than its factorization.

51542002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628604.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 51542002 is about 7179.2758687767. The cubic root of 51542002 is about 372.1520604307.

Adding to 51542002 its reverse (20024515), we get a palindrome (71566517).

The spelling of 51542002 in words is "fifty-one million, five hundred forty-two thousand, two".